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