Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: GONGGONG

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-05 22:25:39

#include <iostream>
using namespace std;

int main() 
{
    int t;cin>>t;
    if(t==0) cout<<0;
    else cout<<4*t+(t-1)*(t)/2*6;
}