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