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