#include<stdio.h>
#include<stdio.h>

int main()
{
    char ch;
    scanf("%c",&ch);
    
    if (isalpha(ch))
    {
        printf("Alphabet");
    }
    else if (isdigit(ch))
    {
        printf("Digit");
    }
    else
    {
        printf("Special Character");
        
    }
    return 0;
    
}