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