
int week(int y,int m,int d)
{
	int i;
	long int sum=0;
	int flagy;

	flagy=y;
	y=y%70000;
	sum=(y-1)/4*(365*4+1)-(y-1)/100+(y-1)/400+((y-1)%4)*365;

	switch(m)
	{
	case 1:sum=sum+0;break;
	case 2:sum=sum+31;break;
	case 3:sum=sum+59;break;
	case 4:sum=sum+90;break;
	case 5:sum=sum+120;break;
	case 6:sum=sum+151;break;
	case 7:sum=sum+181;break;
	case 8:sum=sum+212;break;
	case 9:sum=sum+243;break;
	case 10:sum=sum+273;break;
	case 11:sum=sum+304;break;
	default:sum=sum+334;break;
	}
	if((flagy%4==0&&flagy%100!=0)||flagy%400==0)
		if(m>=3)
			sum=sum+1;

	sum=sum+d;
	return sum;
}

void main()
{
	int year,month,day;
	scanf("%d%d%d",&year,&month,&day);
	switch(week(year,month,day)%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;
	}
	printf("\n");
}