Untitled

#include <iostream>
using namespace std;

int d(int a)
{
    int n=0,m=0;

    while (a > 0) {
        n = a % 10;
        a /= 10;
        m = m * 10 + n;
        
    }
    return m;
}

int main()
{
    int a;
    cin >> a;
    cout << d(a);
}