Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: msurirak

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 11:09:01

#include <iostream>
using namespace std;

int main() {
	int add=4, number=0,k;
	cin>>k;
	for(int i=0;i<k;i++){
		number+=add;
		add+=6;
	}
	cout<<number;
}