若遇到上述情況，直接換行即可

公式：n*(n+1)*(2*n+1)/6

C++程式碼：

#include<iostream>
using namespace std;
int main(){
    int n;
    while(cin>>n) {
    if(n!=0) cout<<n*(n+1)*(2*n+1)/6<<endl;
    else cout<<endl;
}
}

bro you can't just send the answer that's breaking rules (nvm d't ask wdym)

What's nvm d't ask wdym mean?

nvm=never mind wdym= what do you mean