// editor3
#include <iostream>
using namespace std:
int main() {
    char 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 Character";
    }
    }  
    return 0;
    }
    
    
}