#include <stdio.h>

int LeapYear(int Y) {
    // Function to check if a year is a leap year
    return (Y % 4 == 0 && Y % 100 != 0) || (Y % 400 == 0);
}

int main() {
    int Y;

    1996 < Y < 2100;

    // Taking user input for the upcoming year
    printf("Enter the upcoming year: ");
    scanf("%d", &Y);

    // Check if Araf will celebrate tonight
    if (LeapYear(Y) && Y % 4 == 0) {
        printf("YES\n");
    } else {
        printf("NO\n");
    }

    return 0;
}