#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;
}