Submission

Status:

[PPPPPPPPPP]

Subtask/Task Score:

{100/100}

Score: 100

User: SushiCodelnw

Problemset: นักบินอวกาศ

Language: c

Time: 0.002 second

Submitted On: 2025-09-25 18:48:21

#include <stdio.h>
#include <string.h>

int main() {
    int n, k = 4, s = 0;
    scanf("%d", &n);
    for (int i = 0; i < n; i++) {
        s += k;
        k += 6;
    }
    printf("%d\n", s);

    return 0;
}