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