#include <stdio.h>
 
int main() {
    int tahun;
    if (scanf("%d", &tahun
) != 1) return 0;     if ((tahun % 400 == 0) || (tahun % 4 == 0 && tahun % 100 != 0))
    else
        printf("Bukan tahun kabisat\n");     return 0;
}
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