9一下

#include<bits/stdc++.h>
using namespace std;
int n;
int main()
{
    cin>>n;
    for (int i=1; i<=n; i++){
        unsigned long long cnt=0;
        for (int j=1; j<=i;j++){
            cnt+=j;
        }
        cout<<cnt;
        cout<<"\n";
    }
}