int main(int argc, char* argv[])
{
	int days[]={    0,31,28,31,30,31,30,
		31,31,30,31,30,31};
	char*weekdays[]=
	{"Sun","Mon","Tue","Wed","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;
}


