/**
 * 
 * Write a code print reverse of the number
 * e.g 
 * 1. input - 102 then output 201
 * 2. input - 100 then output 1
 * 2. input - 786 then output 687

 */

function reverseNumber(num) {
    return parseInt(num.toString().split('').reverse().join(''));
    
}

console.log(reverseNumber(100));