title: Decode Median String Original String
signature: function decode_median_string_original_string(s)
test_code: using Printf
  
  # SOLUTION CODE
  # ============================================
  PLACEHOLDER_CODE_BODY
  
  # TESTING CODE 
  # ============================================
  function validate_solution(actual, expected)
      return actual == expected
  end
  
  function driver(s, expected)
      try
  
          if validate_solution(PLACEHOLDER_FN_NAME(s), expected)
              return "PASSED";
          end
          return "FAILED";
      catch exception_obj
          return string(Base.typename(typeof(exception_obj)).wrapper);
      end
  end
  
  function main()
      
      result = driver(" EgvQCeqYpZtv", "tpqCvE gQeYZv");
      @printf("TEST-0...%s\n",result);
      
      result = driver("488540", "484850");
      @printf("TEST-1...%s\n",result);
      
      result = driver("0000101010111", "1000000011111");
      @printf("TEST-2...%s\n",result);
      
      result = driver("syw", "ysw");
      @printf("TEST-3...%s\n",result);
      
      result = driver("402355", "524035");
      @printf("TEST-4...%s\n",result);
      
      result = driver("0", "0");
      @printf("TEST-5...%s\n",result);
      
      result = driver("wmHMlAtq", "tlHwmMAq");
      @printf("TEST-6...%s\n",result);
      
      result = driver("7962", "6792");
      @printf("TEST-7...%s\n",result);
      
      result = driver("111111", "111111");
      @printf("TEST-8...%s\n",result);
      
      result = driver("UbgRGDquop", "oqGgUbRDup");
      @printf("TEST-9...%s\n",result);
      
  end
  
  main()
source_py: def decode_median_string_original_string(s):
      l = len(s)
      s1 = ''
      if ((l % 2) == 0):
          isEven = True
      else:
          isEven = False
      for i in range(0, l, 2):
          if isEven:
              s1 = (s[i] + s1)
              s1 += s[(i + 1)]
          elif ((l - i) > 1):
              s1 += s[i]
              s1 = (s[(i + 1)] + s1)
          else:
              s1 += s[i]
      return s1
source_cpp: string decode_median_string_original_string(string s) {
    int l = s . length ( );
    string s1 = "";
    bool isEven = ( l % 2 == 0 ) ? true : false;
    for ( int i = 0;
    i < l;
    i += 2 ) {
      if ( isEven ) {
        s1 = s [ i ] + s1;
        s1 += s [ i + 1 ];
      }
      else {
        if ( l - i > 1 ) {
          s1 += s [ i ];
          s1 = s [ i + 1 ] + s1;
        }
        else {
          s1 += s [ i ];
        }
      }
    }
    return s1;
  }