Untitled

#include <iostream>
#include <cmath>
using namespace std;
int main() {
    int b, c, d;
    long long a;
    cin >> a;
    b = a;
    c = a;
    d = 0;
    int mas[19];
    while (c > 0){
        d += 1;
        c /= 10;
    }
    for (int i = 0; i < d; i++)
    {
        mas[i] = a % 10;
        a /= 10;
    }
    a = b;
    for (int i = d-1; i >= 0; i--)
    {
        cout << mas[i] << ' ';
    }
}