
int number_of_leap_years(int yr, int mth, int day);

int main()
{
	int i=0;
	char dayName[8][5]={"Mon.","Tue.","Wed.","Thu.","Fri.","Sat.","Sun."};	
	int daysInMonth[13] = {0,31,28, 31,30,31,30,31,31,30,31,30,31};
	long long inputYear=0, inputMonth =0, inputDay=0;
	long totalDay=0;
	
	cin>>inputYear>>inputMonth>>inputDay;

	totalDay += (365*(inputYear-1))%7;
	for (int j =1; j<inputMonth; j++)
		totalDay += daysInMonth[j];
	totalDay += inputDay-1;

	totalDay+= number_of_leap_years(inputYear, inputMonth, inputDay);
	cout<<dayName[totalDay%7]<<endl;
	
	return 0;
}


int number_of_leap_years(int yr, int mth, int day)
{
	int additionalDay =0;
	int remainder =0;

	additionalDay = (yr-1)/400;
	additionalDay *=97;
	remainder = (yr-1)%400;

	for (int i=0; i<=remainder; i+=4)
	{
		if(i==0)
			continue;
		if( i%4==0 && (i%100!=0 || i%400==0))
			additionalDay++;
	}

	if(yr%4==0 && (yr%100!=0 || yr%400==0) )
	{
		if(mth>2)
			additionalDay++;	
	}

	return additionalDay;
}