#include <stdio.h>

int main(void) 
{
    int n = 0;
    int i = 0;
    int s = 0;
    
    printf("Please enter value for N\n");
    scanf("%d", &n);
    
    s = 0;
    for (i = 1; i <= n; i += 1) 
{
        if (i % 2 == 0) {
            s = s + i;
            printf("Current value i=%d S=%d\n", i, s);
        }
    }
    
    printf("Final result suma is S=%d", s);
    
    return 0;
}