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