题解 | 数字之和

//KY177 数字之和
#include <iostream>
#include <algorithm>
#include <cstring>
using namespace std;
int n;
int main()
{
    while(cin>>n){
        long long m=n*n;
        int s1=0, s2=0;
        while(n){
            s1+=n%10;
            n/=10;
        }
        while(m){
            s2+=m%10;
            m/=10;
        }
        cout<<s1<<' '<<s2<<'\n';
    }
    return 0;
}