scy视频

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int x;
    scanf("%d", &x);
    int s = 0; 
    while (x != 0)
    {
        s = s + x % 10;
        x = x / 10;
    }
    printf("%d\n", s);
    return 0;
}