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