#include<stdio.h>
int main(){
    char ch;
    scanf("%c",&ch);
    if ((ch >= 'a' && ch <= 'z' ) || (ch >= 'A' && ch <= 'Z'))
    {
        printf("Alphabet");

    }
    else i (ch>='0'&& ch<= "9"){
        printf("Digit");
    }
    else{
        printf("Special Character");
        
    }
    return 0;

}