My logic is right but it is not accepting and showing the wrong answer

https://www.codechef.com/problems/EMAILREM

→ above is the link of the question that I tried to solve and below is code

process.stdin.resume();
process.stdin.setEncoding('utf8');

let n,u;
n = 900;
u = 400;
n -= u;
console.log(n);

Your logic is right, but the test data N and U should be read from the standard input stream.

Check the following update to your code.

Accepted