text: /*
  * This file is automatically generated by Swami
  *
  * 2019-01-09 23:18:07.697715
  */
  
  
  
  
  startTest();
  
  /*
  *
  *	ABSTRACT FUNCTIONS IMPELEMTED USING DESCRIPTION FROM ECMA-262 
  *
  */
  
  function RequireObjectCoercible(argument){
          if (typeof argument == "undefined" || typeof argument == "null")
                  throw new TypeError("TypeError in RequireObjectCoercible")
          else
                  return argument
  }
  
  function ToString(argument){
          if (typeof argument == "undefined")
                  return "undefined"
          else if(argument == null)
                  return "null"
          else if(typeof argument == "boolean"){
                  if (argument == true)
                          return "true"
                  else
                          return "false"
  
          }
          else if(typeof argument == "string")
                  return argument
          else if(typeof argument == "number")
                  return Number(argument).toString()
          else if(typeof argument == "symbol")
                  throw new TypeError("TypeError in ToString")
          else if(typeof argument == "object")
                  return argument.toString()
  
  }
  
  function ToInteger(argument){
          var number = Number(argument)
          if (Object.is(number, NaN)){
                  return 0
          }
          if (number == 0 || number == Infinity || number == -Infinity || number == +0 || number== -0){
                  return number
          }
          return number-(number%1)
  }
  
  function ToUint32(argument){
          var number = Number(argument)
          if (Object.is(number, NaN) || number == 0 || number == Infinity || number == -Infinity || number == +0 || number== -0){
                  return 0
          }
          var i = Math.floor(Math.abs(number))
          var int32bit = i%(Math.pow(2,32))
      return int32bit
  }
  
  function IsRegExp(argument){
          return (argument instanceof RegExp)
  }
  
  function IsCallable(argument){
          if (typeof argument != 'object')
                  return false
          if (typeof argument == 'function')
                  return true
          return false
  }
  
  function ToLength(argument){
          var len = ToInteger(argument);
          if (len <= 0)
                  return 0
          return Math.min(len, 2e53-1)
  }
  
  function ToObject(argument){
          if (typeof argument == 'undefined' || typeof argument == 'null')
                  throw new TypeError("TypeError in ToObject")
          if (typeof argument == "number")
                  return new Number(argument)
          if (typeof argument == "string")
                  return new String(argument)
          if (typeof argument == "boolean")
                  return new Boolean(argument)
          if (typeof argument == "symbol")
                  return new Symbol(argument)
          if (typeof argument == "object")
                  return argument
  }
  
  function thisNumberValue(argument){
  	return Number(argument)
  }
  
  function thisTimeValue(argument){
  	return Date(argument)
  }
  function Get(argument, property){
  	return argument
  }
  function SameValueZero(x,y){
  	return x===y
  }
  /*TEST TEMPLATE GENERATED AUTOMATICALLY*/
  function test_math_acos(x){
  	if (Object.is( x,NaN )){
  		var output = Math.acos(x);
  		new TestCase("math_acos", "math_acos", NaN, output);
  		test();
  		return;
  		}
  	if (( x > 1 )){
  		var output = Math.acos(x);
  		new TestCase("math_acos", "math_acos", NaN, output);
  		test();
  		return;
  		}
  	if (( x < -1 )){
  		var output = Math.acos(x);
  		new TestCase("math_acos", "math_acos", NaN, output);
  		test();
  		return;
  		}
  	if (( x === 1 )){
  		var output = Math.acos(x);
  		new TestCase("math_acos", "math_acos", + 0, output);
  		test();
  		return;
  		}
  }
  
  
  
  /*TESTS GENERATED AUTOMATICALLY*/
  test_math_acos(-195);
  test_math_acos(/[^.]+/);
  test_math_acos(-201);
  test_math_acos(/[\u0400-\u04FF]+/g);
  test_math_acos(4.503142991216612e+307);
  test_math_acos(1.4751864488913797e+308);
  test_math_acos(-0);
  test_math_acos(Infinity);
  test_math_acos(false);
  test_math_acos(3.8953402916897955e+307);
  test_math_acos(-135);
  test_math_acos(-511);
  test_math_acos("UPTXQVX2F");
  test_math_acos(/foo/g);
  test_math_acos("5S9T");
  test_math_acos(-49);
  test_math_acos(undefined);
  test_math_acos(NaN);
  test_math_acos("CVX");
  test_math_acos(2.393500954386955e+307);
  test_math_acos("KGIRQ");
  test_math_acos(7.271164565310309e+306);
  test_math_acos(true);
  test_math_acos(/yes[^]*day/);
  test_math_acos(-955);
  test_math_acos(548);
  test_math_acos(9.554235468512412e+307);
  test_math_acos("PT6U772ET");
  test_math_acos(/(\w+)\s(\w+)/);
  test_math_acos("IF1V029");
  test_math_acos("J1Y9F");
  test_math_acos("7MBCYJTE");
  test_math_acos(8.665451955879927e+307);
  test_math_acos("863U");
  test_math_acos(-637);
  test_math_acos(1.5907314651680299e+308);
  test_math_acos(-893);
  test_math_acos(1.1308128018501273e+308);
  test_math_acos(-655);
  test_math_acos(2.805953117682759e+306);
  test_math_acos(-639);
  test_math_acos(-155);
  test_math_acos(null);
  test_math_acos(-13);
  test_math_acos("GZDR0");
  test_math_acos(1.397894359475244e+308);
  test_math_acos(-471);
  test_math_acos("UPN4WON0A");
  test_math_acos(-331);
  test_math_acos(1.596215369447168e+307);
  test_math_acos(-843);
  test_math_acos("NYO");
  test_math_acos(7.475860748406212e+307);
  test_math_acos(8.736293819167083e+307);
  test_math_acos(-851);
  test_math_acos(+0);
  test_math_acos(1.1502828022907369e+308);
  test_math_acos(/yes.*day/);
  test_math_acos(/\r\n|\r|\n/);
  test_math_acos("H3TUC9L3FZ");
  test_math_acos(-841);
  test_math_acos(7.20244873598161e+307);
  test_math_acos(3.8062061376285946e+307);
  test_math_acos(-481);
  test_math_acos(1.5791839524835656e+308);
  test_math_acos("KRNV");
  test_math_acos(1.2840272141093547e+307);
  test_math_acos(1.3318349678755426e+308);
  test_math_acos(-815);
  test_math_acos(-203);
  test_math_acos(-595);
  test_math_acos(-387);
  test_math_acos(-207);
  test_math_acos(1.028641884228338e+308);
  test_math_acos(-355);
  test_math_acos(-829);
  test_math_acos(3.14806134267015e+307);
  test_math_acos(1.4495787637200865e+308);
  test_math_acos(/ab+c/);
  test_math_acos(4.081009769661757e+306);
  test_math_acos("HHJ3WN8");
  test_math_acos(-731);
  test_math_acos("KA6IJ");
  test_math_acos("NLWM5W3L");
  test_math_acos(9.644734985596152e+307);
  test_math_acos(1.5958963696366006e+308);
  test_math_acos("45FE55CV");
  test_math_acos(1.5415353779948216e+308);
  test_math_acos(-737);
  test_math_acos(-917);
  test_math_acos(-573);
  test_math_acos("T32WWS");
  test_math_acos(-945);
  test_math_acos(1.7303372313856287e+308);
  test_math_acos("S4R");
  test_math_acos(-555);
  test_math_acos("MF27UCUH");
  test_math_acos(5.353752248231108e+307);
  test_math_acos(-547);
  test_math_acos("8WQV4U");
  test_math_acos("E7UK8");
  test_math_acos("EFMA");
  test_math_acos(-323);
  test_math_acos("LR1S");
  test_math_acos(5.911723232222212e+307);
  test_math_acos("4HNG7W");
  test_math_acos("MYVHEY0");
  test_math_acos(1.6535394988933634e+308);
  test_math_acos(-867);
  test_math_acos(1.680385711360579e+308);
  test_math_acos(6.509514624633261e+307);
  test_math_acos(2.3207757155423905e+307);
  test_math_acos(-857);
  test_math_acos("UM4H9M");
  test_math_acos("VR243SZ2P");
  test_math_acos(-27);
  test_math_acos(-263);
  test_math_acos(-375);
  test_math_acos(-509);
  test_math_acos(3.2347995407020026e+307);
  test_math_acos(-739);
  test_math_acos("U345");
  test_math_acos(-517);
  test_math_acos(-233);
  test_math_acos(7.442227537424942e+307);
  test_math_acos(-507);
  test_math_acos(-141);
  test_math_acos("ANKUD1PT");
  test_math_acos(-807);
  test_math_acos(7.639080919950377e+307);
  test_math_acos(2.5334851460774376e+307);
  test_math_acos("G7BJZCTTF4");
  test_math_acos(-409);
  test_math_acos(1.3300926139457662e+308);
  test_math_acos(-803);
  test_math_acos(-421);
  test_math_acos("NYDL");
  test_math_acos(-951);
  test_math_acos(1.455540657623223e+308);
  test_math_acos("8ZC");
  test_math_acos(-883);
  test_math_acos("TD34N1Z");
  test_math_acos(-701);
  test_math_acos(1.0007272997968507e+308);
  test_math_acos(-975);
  test_math_acos("UO338X");
  test_math_acos(9.743815192995374e+307);
  test_math_acos(204);
  test_math_acos(184);
  test_math_acos(-899);
  test_math_acos("8LN0O");
  test_math_acos("Q9B07");
  test_math_acos(-51);
  test_math_acos("HFKTGSN1");
  test_math_acos(1.548781837696986e+308);
  test_math_acos(-689);
  test_math_acos(9.627001452431397e+307);
  test_math_acos(-773);
  test_math_acos(-219);
  test_math_acos("L8GEIV1");
  test_math_acos(-709);
  test_math_acos(3.757706866990872e+307);
  test_math_acos(-663);
  test_math_acos(3.374341195179286e+307);
  test_math_acos(1.7331019517969794e+308);
  test_math_acos(1.0057969107454987e+308);
  test_math_acos(1.7652557764909547e+308);
  test_math_acos(1.6715107430482404e+307);
  test_math_acos(3.9357845969106747e+307);
  test_math_acos(1.6259222998671059e+308);
  test_math_acos("ZVLSFEOC");
  test_math_acos(7.74659123467964e+307);
  test_math_acos(-577);
  test_math_acos("FRF98VG");
  test_math_acos(2.9238403737999237e+307);
  test_math_acos(7.487282540168699e+306);
  test_math_acos(-811);
  test_math_acos("XI4PG");
  test_math_acos("839198");
  test_math_acos(1.4875290110555985e+308);
  test_math_acos(-999);
  test_math_acos(3.859677344481967e+307);
  test_math_acos(1.4136691692588299e+308);
  test_math_acos(1.5787647767517847e+308);
  test_math_acos(-71);
  test_math_acos("JXR3Z41");
  test_math_acos(5.663496549977628e+307);
  test_math_acos(8.469482941047403e+307);
  test_math_acos(1.3641544490528098e+308);
  test_math_acos(1.2210284653477599e+308);
  test_math_acos(-751);
  test_math_acos(-699);
  test_math_acos(1.7736848606102325e+308);
  test_math_acos(1.6976505025681731e+308);
  test_math_acos(2.696236800255896e+307);
  test_math_acos(-259);
  test_math_acos(-127);
  test_math_acos(1.6869578189326538e+308);
  test_math_acos("S9AF");
  test_math_acos("QKEHVP");
  test_math_acos(-365);
  test_math_acos(-489);
  test_math_acos(1.3284516578252163e+308);
  test_math_acos(1.5065213905916067e+308);
  test_math_acos(-813);
  test_math_acos(-797);
  test_math_acos(-961);
  test_math_acos(1.000425349402482e+308);
  test_math_acos(1.069368212951722e+308);
  test_math_acos(-697);
  test_math_acos("58VI63WX5");
  test_math_acos(5.25805442378467e+307);
  test_math_acos(1.780810291191205e+308);
  test_math_acos(6.799258845700848e+307);
  test_math_acos(-223);
  test_math_acos("KWN48W9");
  test_math_acos(-415);
  test_math_acos(5.524939337744915e+307);
  test_math_acos(-29);
  test_math_acos(1.657541881367473e+307);
  test_math_acos(-435);
  test_math_acos(-687);
  test_math_acos(858);
  test_math_acos(9.587692849049077e+307);
  test_math_acos(7.961009603989678e+307);
  test_math_acos(-995);
  test_math_acos(1.1009436169242755e+308);
  test_math_acos(-493);
  test_math_acos("KBU");
  test_math_acos("2PENKJEA0");
  test_math_acos("JFU852");
  test_math_acos(-927);
  test_math_acos(7.877581208469573e+307);
  test_math_acos(1.5474968073266183e+308);
  test_math_acos(4.432783385489449e+307);
  test_math_acos("RIXARGC2R");
  test_math_acos("LQE08LPKN5");
  test_math_acos(-569);
  test_math_acos(1.7969808031832334e+308);
  test_math_acos(-477);
  test_math_acos(-183);
  test_math_acos(-757);
  test_math_acos(-671);
  test_math_acos(2.2219026903616295e+307);
  test_math_acos("N9OFMWU");
  test_math_acos(7.952091625241056e+307);
  test_math_acos(3.740023742972865e+307);
  test_math_acos(-87);
  test_math_acos(-91);
  test_math_acos("6DVLBB1QJ");
  test_math_acos(7.432158144269332e+305);
  test_math_acos(8.541295700493866e+307);
  test_math_acos("NPQD");
  test_math_acos("V3YOPA");
  test_math_acos(1.3670413079485226e+308);
  test_math_acos(-243);
  test_math_acos(1.4858277752144966e+308);
  test_math_acos(4.584998709449868e+306);
  test_math_acos(1.7373052816920103e+308);
  test_math_acos(1.6597994244693623e+308);
  test_math_acos("RNSVNH6");
  test_math_acos(7.447591116583839e+307);
  test_math_acos("3B3FA0Q");
  test_math_acos(-685);
  test_math_acos("QR90B0PM4");
  test_math_acos(-747);
  test_math_acos(1.6371094213879122e+308);
  test_math_acos(-793);
  test_math_acos(1.4485343278156796e+308);
  test_math_acos("VYC94NDZLI");
  test_math_acos("KJZOK");
  test_math_acos("U57Z57BG1");
  test_math_acos(5.718829320332338e+307);
  test_math_acos(5.119192244734929e+307);
  test_math_acos(2.1451010674732895e+307);
  test_math_acos("7GSBWWZ0WE");
  test_math_acos(-299);
  test_math_acos(-881);
  test_math_acos(-889);
  test_math_acos(-677);
  test_math_acos(-117);
  test_math_acos(-63);
  test_math_acos("IT7YY7");
  test_math_acos(420);
  test_math_acos(114);
  test_math_acos(-41);
  test_math_acos(9.04773594677033e+307);
  test_math_acos("DFZ5W8");
  test_math_acos("V45O");
  test_math_acos(-525);
  test_math_acos(1.011638842282339e+308);
  test_math_acos(-593);
  test_math_acos(-395);
  test_math_acos(1.1044759379368744e+308);
  test_math_acos(-575);
  test_math_acos("P3KL");
  test_math_acos("R7FO7D");
  test_math_acos("C0EH");
  test_math_acos(1.7084752711034348e+308);
  test_math_acos("X9NW1X4L");
  test_math_acos(148);
  test_math_acos("E5NH3NI5");
  test_math_acos("1T5W2V21H");
  test_math_acos("XJPEO9GW14");
  test_math_acos(1.3584665474111298e+307);
  test_math_acos("6ZPUW");
  test_math_acos("FVZ");
  test_math_acos(-589);
  test_math_acos(-147);
  test_math_acos(7.690367409826531e+307);
  test_math_acos("1KIZB");
  test_math_acos(1.2901361391080066e+308);
  test_math_acos("9Y4E6RTPH");
  test_math_acos(-449);
  test_math_acos(-599);
  test_math_acos("DT5N");
  test_math_acos(-571);
  test_math_acos("AVI3YH9");
  test_math_acos(-347);
  test_math_acos("Z57SMZX4K");
  test_math_acos(-121);
  test_math_acos(8.717851417689833e+307);
  test_math_acos(1.6808771312614802e+308);
  test_math_acos(7.203766495295912e+307);
  test_math_acos(-1);
  test_math_acos(1.3347241038055195e+308);
  test_math_acos(-157);
  test_math_acos("GK9");
  test_math_acos(-175);
  test_math_acos(-903);
  test_math_acos(1.5822312958377707e+308);
  test_math_acos(8.821188525625166e+307);
  test_math_acos(2.4070579788252625e+307);
  test_math_acos(1.0030468553549385e+308);
  test_math_acos(2.624396826965738e+307);
  test_math_acos("7H6CQZ2");
  test_math_acos("bar");
  test_math_acos(1.7533624392170386e+308);
  test_math_acos(5.061927666038599e+307);
  test_math_acos(-369);
  test_math_acos("FHB");
  test_math_acos(1.4203066716422895e+308);
  test_math_acos(3.027174152871353e+307);
  test_math_acos(1.0553343446917525e+308);
  test_math_acos("UL9FK");
  test_math_acos(6.354307292115324e+307);
  test_math_acos(-631);
  test_math_acos(1.4511065053044483e+308);
  test_math_acos(-717);
  test_math_acos(9.055622247730684e+307);
  test_math_acos(1.866306926135336e+307);
  test_math_acos(-205);
  test_math_acos(2.857056169365779e+307);
  test_math_acos("9BOIWGPP");
  test_math_acos(1.5689483349700632e+308);
  test_math_acos("NG0K2ZFQ");
  test_math_acos(1.2424046562352926e+308);
  test_math_acos(5.07131310016199e+307);
  test_math_acos("TFFQM3FA");
  test_math_acos(-297);
  test_math_acos("VQKQL");
  test_math_acos(-75);
  test_math_acos("8MQRDKO0");
  test_math_acos(3.989931531221045e+307);
  test_math_acos(3.490646558433902e+306);
  test_math_acos(-97);
  test_math_acos(8.471160010990408e+307);
  test_math_acos("B2JLPU3QSY");
  test_math_acos("5SVDMO");
  test_math_acos("XAT0ME79");
  test_math_acos(5.291346682524217e+306);
  test_math_acos("Z69PHBK");
  test_math_acos(-469);
  test_math_acos("WDYGOG5K5");
  test_math_acos(6.101699687264647e+307);
  test_math_acos("XMEFCWGP7L");
  test_math_acos("0UGSURQOJ1");
  test_math_acos(-529);
  test_math_acos(-433);
  test_math_acos(8.200880945219232e+307);
  test_math_acos(-411);
  test_math_acos("DYRL");
  test_math_acos(1.6910596079925322e+308);
  test_math_acos("MRNH");
  test_math_acos("IGJLCVP8");
  test_math_acos(-133);
  test_math_acos(7.086258369215316e+307);
  test_math_acos(-745);
  test_math_acos("8SFG");
  test_math_acos("DU7AA");
  test_math_acos(5.751994277210587e+307);
  test_math_acos("F9GV20PY");
  test_math_acos(-349);
  test_math_acos(1.628394833815953e+308);
  test_math_acos("T3FNE98TJ");
  test_math_acos("7SY");
  test_math_acos(1.2218076449342492e+307);
  test_math_acos(2.630512115534651e+307);
  test_math_acos("PPC");
  test_math_acos("ZS2");
  test_math_acos(1.1870759933089405e+308);
  test_math_acos("0BHAJRG40J");
  test_math_acos(-633);
  test_math_acos(-919);
  test_math_acos(1.175480229559128e+308);
  test_math_acos(1.64744850012797e+307);
  test_math_acos(3.121087629862177e+307);
  test_math_acos(-693);
  test_math_acos("4TS");
  test_math_acos(1.4348831112137623e+308);
  test_math_acos(-835);
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  test_math_acos("2G9TJOYA");
  test_math_acos(-641);
  test_math_acos("YPJS8HRED");
  test_math_acos("P0KEA04CR");
  test_math_acos("ERYBSACPV");
  test_math_acos(1.4660481643706673e+308);
  test_math_acos("QZSF21PX");
  test_math_acos(3.92524081244303e+307);
  test_math_acos(7.758057506179446e+307);
  test_math_acos(9.25263408666158e+307);
  test_math_acos("PUJ23");
  test_math_acos("65197RV");
  test_math_acos("1AP8Y");
  test_math_acos("92B5RI");
  test_math_acos("BNROI2R2U");
  test_math_acos(-617);
  test_math_acos(6.340303288722602e+307);
  test_math_acos(-869);
  test_math_acos(3.834815644164223e+307);
  test_math_acos(-895);
  test_math_acos("LVKDD");
  test_math_acos("K4TW0NV");
  test_math_acos(-635);
  test_math_acos(-949);
  test_math_acos("UKNR");
  test_math_acos(1.3576827391517398e+308);
  test_math_acos(-445);
  test_math_acos("1BG");
  test_math_acos("6M31GAX02R");
  test_math_acos(-473);
  test_math_acos("0OY");
  test_math_acos(4.867171819319514e+307);
  test_math_acos(1.0986914120005384e+308);
  test_math_acos("V92");
  test_math_acos("RV461N");
  test_math_acos("GW6");
  test_math_acos("X71S1FL8");
  test_math_acos(2.640879574731725e+307);
  test_math_acos("S1M4Z");
  test_math_acos(-255);
  test_math_acos(-485);
  test_math_acos(5.323110743815035e+307);
  test_math_acos(-775);
  test_math_acos("RIMEV9C5");
  test_math_acos(1.704736984874504e+307);
  test_math_acos("E47V2NKQ5");
  test_math_acos(1.7899476492593882e+308);
  test_math_acos(1.1128807011218884e+308);
  test_math_acos("LR1VPX");
  test_math_acos(4.157326594507671e+307);
  test_math_acos(4.823940699751008e+307);
  test_math_acos(7.571219507551295e+307);
  test_math_acos(2.0674294143753017e+307);
  test_math_acos(6.72401507120903e+307);
  test_math_acos("JK6QGUMYE");
  test_math_acos("BGKTPC2JN");
  test_math_acos("1GTKLV9");
  test_math_acos("DRJOD1DG");
  test_math_acos("PNS3");
  test_math_acos(-765);
  test_math_acos(6.335868620453278e+307);
  test_math_acos("Q0WP66F");
  test_math_acos("CE0FO73");
  test_math_acos(1.6695625760532707e+307);
  test_math_acos(1.112174490286839e+308);
  test_math_acos("KBTFRNP8");
  test_math_acos(7.432340400346223e+307);
  test_math_acos(-351);
  test_math_acos("U958");
  test_math_acos("4TKPJC9");
  test_math_acos(5.062210772277487e+307);
  test_math_acos("6RJ");
  test_math_acos(2.2854981225222155e+307);
  test_math_acos("LXN9BW2");
  test_math_acos("CRP0YW733");
  test_math_acos(8.402126930044164e+307);
  test_math_acos("FOD7AR9WL");
  test_math_acos(-429);
  test_math_acos("HGFFEVO8C9");
  test_math_acos(6.428185060639795e+306);
  test_math_acos(-725);
  test_math_acos("QLA6X");
  test_math_acos(6.790038870851792e+307);
  test_math_acos("2ONIT7");
  test_math_acos("EULKLTVF");
  test_math_acos(1.1382822562267813e+308);
  test_math_acos(-179);
  test_math_acos("CCXEB98");
  test_math_acos(1.356878736810651e+308);
  test_math_acos(8.662547110023431e+307);
  test_math_acos("L49726");
  test_math_acos(1.6906865932467206e+308);
  test_math_acos("6J5P");
  test_math_acos("3S29RPJWC");
  test_math_acos(1.6956098742128287e+308);
  test_math_acos("J36TG");
  test_math_acos(4.907554967431656e+307);
  test_math_acos("O2S");
  test_math_acos(1.2087643473769415e+308);
  test_math_acos(-619);
  test_math_acos(1.2615528555731847e+308);
  test_math_acos(1.7119199018941052e+308);
  test_math_acos("0X4");
  test_math_acos("I7ISW3EZY");
  test_math_acos(1.4868842669648558e+308);
  test_math_acos("H2IJ0LBO");
  test_math_acos(-55);
  test_math_acos("CPTF8Q3Z3R");
  test_math_acos(-285);
  test_math_acos("WY0");
  test_math_acos(3.483845738839527e+307);
  test_math_acos("0LW8HMXEV");
  test_math_acos("IMVP");
  test_math_acos(2.4548560524664805e+307);
  test_math_acos("ICBU9H7");
  test_math_acos(-585);
  test_math_acos(-479);
  test_math_acos(1.7102032200355121e+308);
  test_math_acos(-413);
  test_math_acos("2ALVB");
  test_math_acos(1.7252210156494589e+308);
  test_math_acos(5.995301506134177e+307);
  test_math_acos(-287);
  test_math_acos("Y0P");
  test_math_acos(-865);
  test_math_acos("KDHNR7ONKX");
  test_math_acos("6SNVO");
  