// your code goes here
var ItemManager = (function(){
var items=[];
var p = function(){
};
p.prototype.addItem = function(item){
items.push(item);
};
p.prototype.debug = function(){
print(items);
};
return p;
})();
var a=new ItemManager();
a.addItem("a");
var b=new ItemManager();
b.addItem("b");
a.debug();
b.debug();
Ly8geW91ciBjb2RlIGdvZXMgaGVyZQp2YXIgSXRlbU1hbmFnZXIgPSAoZnVuY3Rpb24oKXsKCXZhciBpdGVtcz1bXTsKCQogICAgdmFyIHAgPSBmdW5jdGlvbigpewogICAgfTsKCiAgICBwLnByb3RvdHlwZS5hZGRJdGVtID0gZnVuY3Rpb24oaXRlbSl7CiAgICAgICAgaXRlbXMucHVzaChpdGVtKTsKICAgIH07CiAgICAKICAgIHAucHJvdG90eXBlLmRlYnVnID0gZnVuY3Rpb24oKXsKICAgIAlwcmludChpdGVtcyk7CiAgICB9OwoKICAgIHJldHVybiBwOwp9KSgpOwoKdmFyIGE9bmV3IEl0ZW1NYW5hZ2VyKCk7CmEuYWRkSXRlbSgiYSIpOwp2YXIgYj1uZXcgSXRlbU1hbmFnZXIoKTsKYi5hZGRJdGVtKCJiIik7CgphLmRlYnVnKCk7CmIuZGVidWcoKTs=