int main(){
 int year,month,day,a=0,days=0,i,j;
    scanf("%d %d %d",&year,&month,&day);
	if (year>2800){
		year=year-(year/2800)*2800;
	}
 for (j=1;j<year;j++){
  if ((j%4==0&&j%100!=0)||j%400==0){
   a++;
  }
 }
    days=a*366+(year-a-1)*365;
    for (i=1;i<month;i++){
       if (i==1||i==3||i==5||i==7||i==8||i==10||i==12){
        days+=31;
       }
       if (i==4||i==6||i==9||i==11){
        days+=30;
       }
       if (i == 2){
          if (year%400==0||(year%100!=0&&year%4==0)){
           days+=29;
          }else{
           days+=28;
          }
       }
    }
    days+=day;
    //printf("%d\n",days);
    if (days%7==1){
     printf("Mon.");
    }
    if (days%7==2){
     printf("Tue.");
    }
    if (days%7==3){
     printf("Wed.");
    }
       if (days%7==4){
     printf("Thu.");
    }
       if (days%7==5){
     printf("Fri.");
    }  
       if (days%7==6){
     printf("Sat.");
    }
    if (days%7==0){
     printf("Sun.");
    }
 return 0;
}
