text: /*
  ** Xin YUAN, 2019, BSD (2)
  */
  
  /*
  Author: Zhang Xingyu
  
  MD5 Algorithm
  */
  
  var hexcase = 0;
  
  function hex_md5(a) {
      return rstr2hex(rstr_md5(str2rstr_utf8(a)))
  }
  
  function hex_hmac_md5(a, b) {
      return rstr2hex(rstr_hmac_md5(str2rstr_utf8(a), str2rstr_utf8(b)))
  }
  
  function md5_vm_test() {
      return hex_md5("abc").toLowerCase() == "900150983cd24fb0d6963f7d28e17f72"
  }
  
  function rstr_md5(a) {
      return binl2rstr(binl_md5(rstr2binl(a), a.length * 8))
  }
  
  function rstr_hmac_md5(c, f) {
      var e = rstr2binl(c);
      if (e.length > 16) {
          e = binl_md5(e, c.length * 8)
      }
      var a = Array(16),
          d = Array(16);
      for (var b = 0; b < 16; b++) {
          a[b] = e[b] ^ 909522486;
          d[b] = e[b] ^ 1549556828
      }
      var g = binl_md5(a.concat(rstr2binl(f)), 512 + f.length * 8);
      return binl2rstr(binl_md5(d.concat(g), 512 + 128))
  }
  
  function rstr2hex(c) {
      try {
          hexcase
      } catch (g) {
          hexcase = 0
      }
      var f = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
      var b = "";
      var a;
      for (var d = 0; d < c.length; d++) {
          a = c.charCodeAt(d);
          b += f.charAt((a >>> 4) & 15) + f.charAt(a & 15)
      }
      return b
  }
  
  function str2rstr_utf8(c) {
      var b = "";
      var d = -1;
      var a, e;
      while (++d < c.length) {
          a = c.charCodeAt(d);
          e = d + 1 < c.length ? c.charCodeAt(d + 1) : 0;
          if (55296 <= a && a <= 56319 && 56320 <= e && e <= 57343) {
              a = 65536 + ((a & 1023) << 10) + (e & 1023);
              d++
          }
          if (a <= 127) {
              b += String.fromCharCode(a)
          } else {
              if (a <= 2047) {
                  b += String.fromCharCode(192 | ((a >>> 6) & 31), 128 | (a & 63))
              } else {
                  if (a <= 65535) {
                      b += String.fromCharCode(224 | ((a >>> 12) & 15), 128 | ((a >>> 6) & 63), 128 | (a & 63))
                  } else {
                      if (a <= 2097151) {
                          b += String.fromCharCode(240 | ((a >>> 18) & 7), 128 | ((a >>> 12) & 63), 128 | ((a >>> 6) & 63), 128 | (a & 63))
                      }
                  }
              }
          }
      }
      return b
  }
  
  function rstr2binl(b) {
      var a = Array(b.length >> 2);
      for (var c = 0; c < a.length; c++) {
          a[c] = 0
      }
      for (var c = 0; c < b.length * 8; c += 8) {
          a[c >> 5] |= (b.charCodeAt(c / 8) & 255) << (c % 32)
      }
      return a
  }
  
  function binl2rstr(b) {
      var a = "";
      for (var c = 0; c < b.length * 32; c += 8) {
          a += String.fromCharCode((b[c >> 5] >>> (c % 32)) & 255)
      }
      return a
  }
  
  function binl_md5(p, k) {
      p[k >> 5] |= 128 << ((k) % 32);
      p[(((k + 64) >>> 9) << 4) + 14] = k;
      var o = 1732584193;
      var n = -271733879;
      var m = -1732584194;
      var l = 271733878;
      for (var g = 0; g < p.length; g += 16) {
          var j = o;
          var h = n;
          var f = m;
          var e = l;
          o = md5_ff(o, n, m, l, p[g + 0], 7, -680876936);
          l = md5_ff(l, o, n, m, p[g + 1], 12, -389564586);
          m = md5_ff(m, l, o, n, p[g + 2], 17, 606105819);
          n = md5_ff(n, m, l, o, p[g + 3], 22, -1044525330);
          o = md5_ff(o, n, m, l, p[g + 4], 7, -176418897);
          l = md5_ff(l, o, n, m, p[g + 5], 12, 1200080426);
          m = md5_ff(m, l, o, n, p[g + 6], 17, -1473231341);
          n = md5_ff(n, m, l, o, p[g + 7], 22, -45705983);
          o = md5_ff(o, n, m, l, p[g + 8], 7, 1770035416);
          l = md5_ff(l, o, n, m, p[g + 9], 12, -1958414417);
          m = md5_ff(m, l, o, n, p[g + 10], 17, -42063);
          n = md5_ff(n, m, l, o, p[g + 11], 22, -1990404162);
          o = md5_ff(o, n, m, l, p[g + 12], 7, 1804603682);
          l = md5_ff(l, o, n, m, p[g + 13], 12, -40341101);
          m = md5_ff(m, l, o, n, p[g + 14], 17, -1502002290);
          n = md5_ff(n, m, l, o, p[g + 15], 22, 1236535329);
          o = md5_gg(o, n, m, l, p[g + 1], 5, -165796510);
          l = md5_gg(l, o, n, m, p[g + 6], 9, -1069501632);
          m = md5_gg(m, l, o, n, p[g + 11], 14, 643717713);
          n = md5_gg(n, m, l, o, p[g + 0], 20, -373897302);
          o = md5_gg(o, n, m, l, p[g + 5], 5, -701558691);
          l = md5_gg(l, o, n, m, p[g + 10], 9, 38016083);
          m = md5_gg(m, l, o, n, p[g + 15], 14, -660478335);
          n = md5_gg(n, m, l, o, p[g + 4], 20, -405537848);
          o = md5_gg(o, n, m, l, p[g + 9], 5, 568446438);
          l = md5_gg(l, o, n, m, p[g + 14], 9, -1019803690);
          m = md5_gg(m, l, o, n, p[g + 3], 14, -187363961);
          n = md5_gg(n, m, l, o, p[g + 8], 20, 1163531501);
          o = md5_gg(o, n, m, l, p[g + 13], 5, -1444681467);
          l = md5_gg(l, o, n, m, p[g + 2], 9, -51403784);
          m = md5_gg(m, l, o, n, p[g + 7], 14, 1735328473);
          n = md5_gg(n, m, l, o, p[g + 12], 20, -1926607734);
          o = md5_hh(o, n, m, l, p[g + 5], 4, -378558);
          l = md5_hh(l, o, n, m, p[g + 8], 11, -2022574463);
          m = md5_hh(m, l, o, n, p[g + 11], 16, 1839030562);
          n = md5_hh(n, m, l, o, p[g + 14], 23, -35309556);
          o = md5_hh(o, n, m, l, p[g + 1], 4, -1530992060);
          l = md5_hh(l, o, n, m, p[g + 4], 11, 1272893353);
          m = md5_hh(m, l, o, n, p[g + 7], 16, -155497632);
          n = md5_hh(n, m, l, o, p[g + 10], 23, -1094730640);
          o = md5_hh(o, n, m, l, p[g + 13], 4, 681279174);
          l = md5_hh(l, o, n, m, p[g + 0], 11, -358537222);
          m = md5_hh(m, l, o, n, p[g + 3], 16, -722521979);
          n = md5_hh(n, m, l, o, p[g + 6], 23, 76029189);
          o = md5_hh(o, n, m, l, p[g + 9], 4, -640364487);
          l = md5_hh(l, o, n, m, p[g + 12], 11, -421815835);
          m = md5_hh(m, l, o, n, p[g + 15], 16, 530742520);
          n = md5_hh(n, m, l, o, p[g + 2], 23, -995338651);
          o = md5_ii(o, n, m, l, p[g + 0], 6, -198630844);
          l = md5_ii(l, o, n, m, p[g + 7], 10, 1126891415);
          m = md5_ii(m, l, o, n, p[g + 14], 15, -1416354905);
          n = md5_ii(n, m, l, o, p[g + 5], 21, -57434055);
          o = md5_ii(o, n, m, l, p[g + 12], 6, 1700485571);
          l = md5_ii(l, o, n, m, p[g + 3], 10, -1894986606);
          m = md5_ii(m, l, o, n, p[g + 10], 15, -1051523);
          n = md5_ii(n, m, l, o, p[g + 1], 21, -2054922799);
          o = md5_ii(o, n, m, l, p[g + 8], 6, 1873313359);
          l = md5_ii(l, o, n, m, p[g + 15], 10, -30611744);
          m = md5_ii(m, l, o, n, p[g + 6], 15, -1560198380);
          n = md5_ii(n, m, l, o, p[g + 13], 21, 1309151649);
          o = md5_ii(o, n, m, l, p[g + 4], 6, -145523070);
          l = md5_ii(l, o, n, m, p[g + 11], 10, -1120210379);
          m = md5_ii(m, l, o, n, p[g + 2], 15, 718787259);
          n = md5_ii(n, m, l, o, p[g + 9], 21, -343485551);
          o = safe_add(o, j);
          n = safe_add(n, h);
          m = safe_add(m, f);
          l = safe_add(l, e)
      }
      return Array(o, n, m, l)
  }
  
  function md5_cmn(h, e, d, c, g, f) {
      return safe_add(bit_rol(safe_add(safe_add(e, h), safe_add(c, f)), g), d)
  }
  
  function md5_ff(g, f, k, j, e, i, h) {
      return md5_cmn((f & k) | ((~f) & j), g, f, e, i, h)
  }
  
  function md5_gg(g, f, k, j, e, i, h) {
      return md5_cmn((f & j) | (k & (~j)), g, f, e, i, h)
  }
  
  function md5_hh(g, f, k, j, e, i, h) {
      return md5_cmn(f ^ k ^ j, g, f, e, i, h)
  }
  
  function md5_ii(g, f, k, j, e, i, h) {
      return md5_cmn(k ^ (f | (~j)), g, f, e, i, h)
  }
  
  function safe_add(a, d) {
      var c = (a & 65535) + (d & 65535);
      var b = (a >> 16) + (d >> 16) + (c >> 16);
      return (b << 16) | (c & 65535)
  }
  
  function bit_rol(a, b) {
      return (a << b) | (a >>> (32 - b))
  };