// Runtime: 1 ms, faster than 100.00% of Java online submissions for Reverse Integer.
// Memory Usage: 33.6 MB, less than 11.66% of Java online submissions for Reverse Integer.

class Solution {
    public int reverse(int x) {
        long res = 0;
        while (x != 0) {
            int rem = x % 10;
            x = x / 10;
            res += rem;
            if(x != 0) {
                res  *= 10;
            }
            if(res >= Integer.MAX_VALUE || res <= Integer.MIN_VALUE) {
                return 0;
            }
//            System.out.println(res);
        }
        return (int) res;
    }
}