#include <iostream>
using namespace std;

bool isLeap(int x) {
	if(x % 4 == 0 && x % 100 != 0 || x % 400 == 0) 
		return true;
	else return false;
}

int main() {
	int year, month, day, sum = 0;
	int days[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
	char weekday[7][20] = {"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
	scanf("%d,%d,%d", &year, &month, &day);
	if(isLeap(year)) days[2] = 29;
	for(int i = 2012;i < year;i++) { //以2012年1月1日星期日为基准
		if(isLeap(i)) sum += 366;
		else sum += 365;
	}
	for(int i = 1;i < month;i++)
		sum += days[i];
	sum += day-1;
	cout << weekday[sum%7] << endl;
	return 0;
}