int main(){
	int y,m,d;
	int totalday;
	int a[12]={0,31,59,90,120,151,181,212,243,273,304,334};
	scanf("%d %d %d",&y,&m,&d);
	totalday=y-1+(y-1)/4+(y-1)/400-(y-1)/100+a[m-1]+d;
	if(y%4==0&&y%100!=0||y%400==0&&m>2){totalday++;}
	switch(totalday%7){
		case 0:printf("Sun.");break;
		case 1:printf("Mon.");break;
		case 2:printf("Tue.");break;
		case 3:printf("Wed.");break;
		case 4:printf("Thu.");break;
		case 5:printf("Fri.");break;
		case 6:printf("Sat.");break;
	}
	return 0;
}