process.stdin.resume();
process.stdin.setEncoding('utf8');
 
// your code goes here
 
process.stdin.resume();
process.stdin.setEncoding('utf8');
 
// your code goes here
 
function bind(fu, obj)
{
    return function()
    {
        return fu.call(obj);
    }
}
 
global.x = 1;
var ctx = { x: 2 };
 
function testThis() { console.log(this.x); }
console.log(testThis()); // 1
var boundFunction = bind(testThis, ctx);
console.log(boundFunction()); // 2
 

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