int main (){
    int days[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
    char * weekdays[]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
    int y,m,d,w,i;
    scanf("%d %d %d",&y,&m,&d);
    getchar();
    w =y%7+y/4-y/100+y/400;
    for (i=1;i<m;i++){
        w +=days[i];
    }    w +=d-1;
        if (((y%4==0&&y%100!=0)||y%400==0)&&(m<=2)){
            w--;
        }
    printf("%s.\n",weekdays[w%7]);
    getchar();
    return 0;
}
