#include<stdio.h>
void main()
{
    char a;
    int b;
    scanf("%c",&a);
    scanf("%d",&b);
    if( a>= 'A' && a<='Z')
    {
        printf("Alphabet");
    }else if(%d = int)
    {
        printf("Digit");
    }else
    {
        printf("Special character");
    }
}