text: // LIFE
  //
  // Converted from BASIC to Javascript by Oscar Toledo G. (nanochess)
  //
  
  function print(str)
  {
      document.getElementById("output").appendChild(document.createTextNode(str));
  }
  
  function input()
  {
      var input_element;
      var input_str;
      
      return new Promise(function (resolve) {
                         input_element = document.createElement("INPUT");
                         
                         print("? ");
                         input_element.setAttribute("type", "text");
                         input_element.setAttribute("length", "50");
                         document.getElementById("output").appendChild(input_element);
                         input_element.focus();
                         input_str = undefined;
                         input_element.addEventListener("keydown", function (event) {
                                                        if (event.keyCode == 13) {
                                                        input_str = input_element.value;
                                                        document.getElementById("output").removeChild(input_element);
                                                        print(input_str);
                                                        print("\n");
                                                        resolve(input_str);
                                                        }
                                                        });
                         });
  }
  
  function tab(space)
  {
      var str = "";
      while (space-- > 0)
          str += " ";
      return str;
  }
  
  var bs = [];
  var a = [];
  
  // Main program
  async function main()
  {
      print(tab(34) + "LIFE\n");
      print(tab(15) + "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY\n");
      print("\n");
      print("\n");
      print("\n");
      print("ENTER YOUR PATTERN:\n");
      x1 = 1;
      y1 = 1;
      x2 = 24;
      y2 = 70;
      for (c = 1; c <= 24; c++) {
          bs[c] = "";
          a[c] = [];
          for (d = 1; d <= 70; d++)
              a[c][d] = 0;
      }
      c = 1;
      while (1) {
          bs[c] = await input();
          if (bs[c] == "DONE") {
              bs[c] = "";
              break;
          }
          if (bs[c].substr(0, 1) == ".")
              bs[c] = " " + bs[c].substr(1);
          c++;
      }
      c--;
      l = 0;
      for (x = 1; x <= c - 1; x++) {
          if (bs[x].length > l)
              l = bs[x].length;
      }
      x1 = 11 - (c >> 1);
      y1 = 33 - (l >> 1);
      p = 0;
      for (x = 1; x <= c; x++) {
          for (y = 1; y <= bs[x].length; y++) {
              if (bs[x][y - 1] != " ") {
                  a[x1 + x][y1 + y] = 1;
                  p++;
              }
          }
      }
      print("\n");
      print("\n");
      print("\n");
      i9 = false;
      g = 0;
      while (g < 100) {
          print("GENERATION: " + g + " POPULATION: " + p + " ");
          if (i9)
              print("INVALID!");
          x3 = 24;
          y3 = 70;
          x4 = 1;
          y4 = 1;
          p = 0;
          g++;
          for (x = 1; x <= x1 - 1; x++)
              print("\n");
          for (x = x1; x <= x2; x++) {
              print("\n");
              str = "";
              for (y = y1; y <= y2; y++) {
                  if (a[x][y] == 2) {
                      a[x][y] = 0;
                      continue;
                  } else if (a[x][y] == 3) {
                      a[x][y] = 1;
                  } else if (a[x][y] != 1) {
                      continue;
                  }
                  while (str.length < y)
                      str += " ";
                  str += "*";
                  if (x < x3)
                      x3 = x;
                  if (x > x4)
                      x4 = x;
                  if (y < y3)
                      y3 = y;
                  if (y > y4)
                      y4 = y;
              }
              print(str);
          }
          for (x = x2 + 1; x <= 24; x++)
              print("\n");
          x1 = x3;
          x2 = x4;
          y1 = y3;
          y2 = y4;
          if (x1 < 3) {
              x1 = 3;
              i9 = true;
          }
          if (x2 > 22) {
              x2 = 22;
              i9 = true;
          }
          if (y1 < 3) {
              y1 = 3;
              i9 = true;
          }
          if (y2 > 68) {
              y2 = 68;
              i9 = true;
          }
          p = 0;
          for (x = x1 - 1; x <= x2 + 1; x++) {
              for (y = y1 - 1; y <= y2 + 1; y++) {
                  c = 0;
                  for (i = x - 1; i <= x + 1; i++) {
                      for (j = y - 1; j <= y + 1; j++) {
                          if (a[i][j] == 1 || a[i][j] == 2)
                              c++;
                      }
                  }
                  if (a[x][y] == 0) {
                      if (c == 3) {
                          a[x][y] = 3;
                          p++;
                      }
                  } else {
                      if (c < 3 || c > 4) {
                          a[x][y] = 2;
                      } else {
                          p++;
                      }
                  }
              }
          }
          x1--;
          y1--;
          x2++;
          y2++;
      }
  }
  
  main();
  