100710: [AtCoder]ABC071 A - Meal Delivery
Memory Limit:256 MB
Time Limit:2 S
Judge Style:Text Compare
Creator:
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Solved:0
Description
Score : $100$ points
Problem Statement
Snuke lives at position $x$ on a number line. On this line, there are two stores $A$ and $B$, respectively at position $a$ and $b$, that offer food for delivery.
Snuke decided to get food delivery from the closer of stores $A$ and $B$. Find out which store is closer to Snuke's residence.
Here, the distance between two points $s$ and $t$ on a number line is represented by $|s-t|$.
Constraints
- $1 \leq x \leq 1000$
- $1 \leq a \leq 1000$
- $1 \leq b \leq 1000$
- $x, a$ and $b$ are pairwise distinct.
- The distances between Snuke's residence and stores $A$ and $B$ are different.
Input
Input is given from Standard Input in the following format:
$x$ $a$ $b$
Output
If store $A$ is closer, print A
; if store $B$ is closer, print B
.
Sample Input 1
5 2 7
Sample Output 1
B
The distances between Snuke's residence and stores $A$ and $B$ are $3$ and $2$, respectively.
Since store $B$ is closer, print B
.
Sample Input 2
1 999 1000
Sample Output 2
A