#include <iostream>
using namespace std;
int main() {
int x;
int y;
int z;
cin >> x;
y = 0;
while (x >= 0){
y = y + x % 10;
x = x / 10;
}
cout << "The sum of the digits of" << x << "is" << y << endl;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CglpbnQgeDsKCWludCB5OwoJaW50IHo7CgkKCWNpbiA+PiB4OwoJCgkKCXkgPSAwOwoJd2hpbGUgKHggPj0gMCl7CgkgeSA9IHkgKyB4ICUgMTA7CgkgeCA9IHggLyAxMDsKCQoJfQoKCWNvdXQgPDwgIlRoZSBzdW0gb2YgdGhlIGRpZ2l0cyBvZiIgIDw8IHggPDwgImlzIiA8PCB5IDw8IGVuZGw7Cgp9Cg==