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

    
}