int main()
{
	int year,month,day,sum=0;
	int i;
	scanf("%d%d%d",&year,&month,&day);
	year=year%400;
	if(year==0){
		year+=400;
	}
	sum+=(year-1)*(365%7)+((year-1)/4-(year-1)/100+(year-1)/400);
	for(i=1;i<month;i++){
		switch(i)
		{
			case 1:
			case 3:
			case 5:
			case 7:
			case 8:
			case 10:
			case 12:
				sum+=31;
				break;
			case 4:
			case 6:
			case 9:
			case 11:
				sum+=30;
				break;
			case 2:
				if(year%4==0&&year%100!=0||year%400==0){
					sum+=29;
					break;
				}
				else{
					sum+=28;
					break;
				}
			}
	}
	sum+=day;
	switch(sum%7){
		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;
		case 0:
			printf("Sun.\n");
			break;
	}
	return 0;
}