#include<stdio.h>

 void main()
{
    char ch;
    scanf("%c",&ch);
    if(ch=='a'|| ch=='z')
    {
        printf("Alphabet");
    }
    else if(ch=='0'|| ch=='9')
    {
        printf("Digit");
    }
    else{
        printf("Special Character");
        return 0;
    }
        
}