int main()
{
	int days[]={30,31,28,31,30,31,30,31,31,30,31,30,31};
	char*weekdays[]={"Sun.","Mon.","Tue.","Wen.","Thu.","Fri.","Sat."};
	int y,m,d,w,i;
	scanf("%d %d %d",&y,&m,&d);
	w=y%7+y/4-y/100+y/400;
	for(i=1;i<m;i++){
		w+=days[i];
	}
	w+=d-1;
	if(((y%4==0&&y%100!=0)||y%400==0)&&(m<=2)){
		w--;
	}
	printf("%s\n",weekdays[w%7]);
	return 0;
}