Help me in solving PPSC94 problem

My issue

Solve this

My code

#include <stdio.h>

int main() {
    // Update the code below this line
    int N, sum;
    scanf("%d", &N);

    for (int i = 1; i < 2; i++) {

      sum = i+N;

    }

    printf("%d", sum);

    return 0;
}

Learning course: Programming and Problem solving using C
Problem Link: https://www.codechef.com/learn/course/ciet-programming-c/CIETPC22/problems/PPSC94