
int cul(int month);
int main()
{
	int year,month,day;
	char stu[7][5]={"Mon.","Tue.","Wed.","Thu.","Fri.","Sat.","Sun."};
	cin>>year>>month>>day;
	int sta=0;
	sta=sta+year-1+(year-1)/4-(year-1)/100+(year-1)/400;
	sta=sta+cul(month);
	sta=sta+(day-1)%7;
	if(year%400==0&&month>2)	{sta++;}
	else	
	{
		if(year%4==0&&year%100!=0&&month>2)	{sta++;}
	}
	sta%=7;
	cout<<stu[sta]<<endl;
	return 0;
}

int cul(int month)
{
	switch(month)
	{
	case 1:	{return 0;	break;}
	case 2: {return 3;	break;}
	case 3: {return 3;	break;}
	case 4: {return 6;	break;}
	case 5: {return 1;	break;}
	case 6: {return 4;	break;}
	case 7: {return 6;	break;}
	case 8: {return 2;	break;}
	case 9: {return 5;	break;}
	case 10: {return 0;	break;}
	case 11: {return 3;	break;}
	case 12: {return 5;	break;}
	};
}



