Leap Year or Not

//Written by MA Saleh
#include <stdio.h>
int main()
{
    int year;
    while(year!=0)
    {
        printf("Enter a Year<Enter 0 for exit>: \n");
        scanf("%d", &year);
        if(year!=0)
        {
            if(year%400 == 0)
            {
                printf("%d is leap year\n", year);
            }
            else if(year%100 == 0)
            {
                printf("%d is not leap year\n", year);
            }
            else if(year%4== 0)
            {
                printf("%d is leap year\n", year);
            }
            else
            {
            printf("%d is not leap year\n", year);
            }
        }
    }
    return 0;
     //Copyright@MAS
}

Sample Input: 2004 2010 0

Sample Output:

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