process.stdin.resume();
process.stdin.setEncoding('utf8');
 
// your code goes here
 
ob=function(){
   var prop=1;
   return function(arg){
       var meth=function(x){return x+x;}, setp=function(x){prop=x;};
       return eval(arg)}}();
ob("setp(2)");
console.log(ob("meth(prop)"));
 
ob = function() {
  var x = 1;
  return {
    meth: function() { return x + x; },
    setp: function(y) { x = y; }
  }
}();
ob.setp(2);
console.log(ob.meth());
 

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