Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: simon

Problemset: นักบินอวกาศ

Language: cpp

Time: 0.003 second

Submitted On: 2026-05-09 11:48:56

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;cin >> n;
	int ans =4;
	int ds =0;
	for(int i =0;i<n;i++)
	{
		
		ds += ans;
		ans += 6;
	}
	cout << ds;
	
	
}