#include<stdio.h>
#include<ctype.h>
int main()
    char ch;
    scanf("%c",&ch);
    if (isalpha(ch)){
        printf("Alphabet\n");
    }
    else if (isdigit(ch)){
        printf("Digit\n");
    }
    else {
        printf("Special Character\n");
    }
    return 0;
}