Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: Phat12

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.002 second

Submitted On: 2025-08-29 14:04:42

#include <bits/stdc++.h>
using namespace std;

int main() {
	// your code goes here
    int n;
    cin >> n;
    int k=4;
    int sum=0;
    for (int i=0;i<n;i++){
        sum+=k;
        k+=6;
    }
    cout << sum;
}