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