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|.
x,a,b = map(int,input().split())

print(min(abs(x-a),abs(x-b)))
x,a,b = map(int,input().split())

if abs(x-a) <  abs(x-b):
    print('A')
else:
    print('B')
