103051: [Atcoder]ABC305 B - ABCDEFG

Problem Statement

There are $7$ points $A$, $B$, $C$, $D$, $E$, $F$, and $G$ on a straight line, in this order. (See also the figure below.)
The distances between adjacent points are as follows.

• Between $A$ and $B$: $3$
• Between $B$ and $C$: $1$
• Between $C$ and $D$: $4$
• Between $D$ and $E$: $1$
• Between $E$ and $F$: $5$
• Between $F$ and $G$: $9$

You are given two uppercase English letters $p$ and $q$. Each of $p$ and $q$ is A, B, C, D, E, F, or G, and it holds that $p \neq q$.
Find the distance between the points $p$ and $q$.

Constraints

• Each of $p$ and $q$ is A,B,C,D,E,F, or G.
• $p \neq q$

Input

The input is given from Standard Input in the following format:

$p$ $q$

Output

Print the distance between the points $p$ and $q$.

Sample Input 1

A C

Sample Output 1

4

The distance between the points $A$ and $C$ is $3 + 1 = 4$.

Sample Input 2

G B

Sample Output 2

20

The distance between the points $G$ and $B$ is $9 + 5 + 1 + 4 + 1 = 20$.

Sample Input 3

C F

Sample Output 3

10

问题描述

在一条直线上有7个点A、B、C、D、E、F和G，按此顺序排列（如图所示）。
相邻点之间的距离如下。

• A和B之间：3
• B和C之间：1
• C和D之间：4
• D和E之间：1
• E和F之间：5
• F和G之间：9

给你两个大写字母p和q。p和q分别是A、B、C、D、E、F或G，且p≠q。
求点p和点q之间的距离。

约束条件

• p和q分别是A、B、C、D、E、F或G。
• p≠q。

输入

输入通过标准输入以以下格式给出：

$p$ $q$

输出

输出点p和点q之间的距离。

样例输入1

A C

样例输出1

4

点A和点C之间的距离为3 + 1 = 4。

样例输入2

G B

样例输出2

20

点G和点B之间的距离为9 + 5 + 1 + 4 + 1 = 20。

样例输入3

C F

样例输出3

10