#include <iostream>
using namespace std;
int main(){
    chat ch;
    cin>>ch;
    if (ch>='0'&&ch<='9'){
        cout<<"Digit";
        
    }
    else if ((ch>='a'&&ch<='z')||(ch>='A'&&ch<='Z')){
        cout<<"Alphabet";
        
    }
    else{
        cout<<"Special Chatacter";
        
    }
    return 0;
}