#include <iostream>
int main() {
    if(!std::cin>>ch))return 0;
    if((ch>='a&&ch<='z')||(ch>='A'&&CH<='Z')){
        std::cout<<"Alphabet"<<std::endl;
    }
else if(ch>='0'&&ch<='9'){
        std::cout<<"Digit"<<std::endl;
}
else{
    std::cout<<"Special Character"<<std::endl;
}
return 0;
}