
int main()
{
	long year,res=0;
	int month,day,i;
	int tab[12]={31,28,31,30,31,30,31,31,30,31,30,31};
	scanf("%ld %d %d",&year,&month,&day);
	res+=(year-1)%7+(year-1)/4%7-(year-1)/100%7+(year-1)/400%7;
	for(i=0;i<month-1;i++)
		res+=tab[i];
	if((year%4==0&&year%100!=0||year%400==0)&&month>2)
		res+=1;
	res+=day;
	res=res%7;
	switch(res)
	{
	case 0:printf("Sun.\n");break;
    case 1:printf("Mon.\n");break;
    case 2:printf("Tue.\n");break;
    case 3:printf("Wed.\n");break;
    case 4:printf("Thu.\n");break;
    case 5:printf("Fri.\n");break;
    case 6:printf("Sat.\n");break;
	}
	return 0;
}