process.stdin.resume();
process.stdin.setEncoding('utf8');
// your code goes here
ob=function(arg){var prop=1, meth=function(x){return x+x;}; return eval(arg)}
console.log(ob("meth(prop)"))
cHJvY2Vzcy5zdGRpbi5yZXN1bWUoKTsKcHJvY2Vzcy5zdGRpbi5zZXRFbmNvZGluZygndXRmOCcpOwoKLy8geW91ciBjb2RlIGdvZXMgaGVyZQpvYj1mdW5jdGlvbihhcmcpe3ZhciBwcm9wPTEsIG1ldGg9ZnVuY3Rpb24oeCl7cmV0dXJuIHgreDt9OyByZXR1cm4gZXZhbChhcmcpfQpjb25zb2xlLmxvZyhvYigibWV0aChwcm9wKSIpKQo=