#include <stdio.h>

int main()
{
    int year, month, day;
    extern int weekday(int year, int month, int day);

    if (scanf("%d%d%d", &year, &month, &day) != 3) {
	printf("Bad input\n");
    } else if (day < 1 || day > 31 || month < 1 || month > 12) {
	printf("Invalid date\n");
    } else {
	printf("%d\n", weekday(year, month, day));
    }
    return 0;
}