(function(program, execJS) { execJS(program) })(function(module, exports, require, console) { #{source} }, function(program) {

var output, print = function(string) {
  process.stdout.write('' + string);
};
try {
  result = program();
  if (typeof result == 'undefined' && result !== null) {
    print('["ok"]');
  } else {
    try {
      print(JSON.stringify(['ok', result]));
    } catch (err) {
      print('["err"]');
    }
  }
} catch (err) {
  print(JSON.stringify(['err', '' + err]));
}

});