Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: mameeewin

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-13 15:09:11

#include <iostream>
using namespace std;

int main(){
  long long n, done=0; cin >> n;
  for (int i=0; i<n; i++) done+=6*i+4;
  cout << done;
}