Задача . Прописи#44312

n = int (input ( ) )
m = int (input ( ) )
left = [int(input()) for i in range (n)]
right = [int(input()) for i in range (m)]
i = 0
j = 0
while i < len (left):
    if j < len(right) and right[j] <= left[i]:
        print((left[i] - right[j]) // 2, (left[i] + right[j]) // 2)
        i += 1
        j += 1
    else:
        print(0, left[i])
        i += 1
while j < len(right):
    print(0, right[j])
    j += 1