#include<iostream>
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 Charachter";
    return 0; 
};