#include<stdio.h>
int main()
{
    char a;
    scanf("%c",& a)
    if((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'z'))
    {
    printf("Alphabet");
    }
    else if(ch >= '0' && ch<='9')
    {
    printf("Digit");
    }
    else
    {
    printf("Special Character");
    }
}