
int main()
{
	int days1[12]={31,28,31,30,31,30,31,31,30,31,30,31};
	int days2[12]={31,29,31,30,31,30,31,31,30,31,30,31};
	long total=0;
	int y, m ,d,n,i;
	scanf("%d %d %d",&y,&m,&d);
    y=(int)(y%2000);
	if (y==0)
		y=2000;
	for (i=1;i<y;i++)
	{
	    if ((i%4 ==0)&&(i%100!=0))
			total=total+366;
		else 
		{
			if (i%400 == 0)
				total=total+366;
			else total=total+365;
		}
	}
	for (i=0; i<m-1;i++)
	{
		if ( (y%400==0) || ((y%4==0)&&(y%100!=0)) )
		
			total=total+days2[i];

		else
			total=total+days1[i];
	}
   total=total +d;
	n=(int)(total%7);
	switch (n)
	{
		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;
}

