Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: cjqwerty

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-01 10:42:49

#include<iostream>
using namespace std;

int main(){
	int n;
	int n1 = 4;
	int ans = 0;
	cin>>n;
	for(int i=0;i<n;i++){
		ans += n1;
		n1 += 6;
	}
	cout<<ans;
	return 0;
}