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')
