#include <stdio.h>

/* 1990年1月1日 是星期一 */

int is_leap_year(int year) {
    if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
        return 1;
    }
    return 0;
}

int calculate_days(int year, int month, int day) {
    int days = 0;
    int days_in_month[] = {31, 28 + is_leap_year(year), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

    for (int i = 1990; i < year; i++) {
        days += 365 + is_leap_year(i);
    }

    for (int i = 0; i < month - 1; i++) {
        days += days_in_month[i];
    }

    days += day;

    return days;
}

int main(){
    int year, month, day, week;
    
    scanf("%d/%d/%d", &year, &month, &day);

    int days = calculate_days(year, month, day);
    week = days % 7;

    if (week != 0) {
        printf("%d年%d月%d日是星期%d\n", year, month, day, week);
    } else {
        printf("%d年%d月%d日是星期日\n", year, month, day);
    }

    return 0;
}