Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: kawinavokiwi

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-13 19:22:08

#include <bits/stdc++.h>

using namespace std;

int main(){
    int t;
    cin >> t;
    int sum = 0;
    int sung = 4;
    for(int i = 1 ;i<=t;i++){
        sum+=sung;
        sung+=6;
    }
    cout << sum;
    return 0;
}