CF710A.King Moves

The only king stands on the standard chess board. You are given his position in format "cd", where c is the column from 'a' to 'h' and d is the row from '1' to '8'. Find the number of moves permitted for the king.

Check the king's moves here https://en.wikipedia.org/wiki/King_(chess).

King moves from the position e4

唯一的国王站在标准国际象棋棋盘上。你将获得其位置，格式为“cd”，其中 c 是从 'a' 到 'h' 的列，d 是从 '1' 到 '8' 的行。求该国王允许走的步数。

国王的走法参见 https://en.wikipedia.org/wiki/King_(chess)。

国王从 e4 位置出发的走法

The only line contains the king's position in the format "cd", where 'c' is the column from 'a' to 'h' and 'd' is the row from '1' to '8'.

唯一的一行包含国王的位置，格式为“cd”，其中‘c’是列，取值范围为‘a’到‘h’，‘d’是行，取值范围为‘1’到‘8’。

Print the only integer x — the number of moves permitted for the king.

输出唯一的整数 $x$ —— 国王被允许的移动步数。