Untitled

#include <iostream>
#include <cmath>
using namespace std;

int main() {

    int a,doub = 0;

    cin >> a;
    int copy_a = a;
    while (a != 0) {
        doub *= 10;
        doub += a % 10;
        a = a / 10;
    }
    while (doub != 0) {
        cout << " " << doub % 10;
        doub = doub / 10;
    }
}