int main(int argc, char* argv[])
{
	int year,month,day,sum=0,i;
	scanf("%d%d%d",&year,&month,&day);
	int days[12]={31,28,31,30,31,30,31,31,30,31,30,31};
	    for(i=1;i<year%400;i++)
		{ 
	    	if(i%4==0&&i%100!=0||i%400==0)
			{
			    sum+=366;
			}
		    else
			{
		    	sum+=365;
			}
		}
    if(year%400==0)
		sum+=5;
	for(i=0;i<month-1;i++)
	{
		sum+=days[i];
	}
	sum+=day;
	if((year%4==0&&year%100!=0||year%400==0)&&month>2)
		sum++;
	switch(sum%7)
    {
      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;
      default: printf("Sat.\n");
     }

	return 0;
}
