cf 710A

#include<stdio.h>

int main()
{
    char s[2];
    scanf("%s", s);

    if((s[0] == 'a' && (s[1] == '1' || s[1] == '8')) || (s[0] == 'h' && (s[1] == '1' || s[1] == '8'))) printf("3\n");
    else if(s[0] == 'a'|| s[0] == 'h' || s[1] == '1' || s[1] == '8') printf("5\n");
    else printf("8\n");
}