输入格式是 W1=input() W2=input() 将两个数列的数据的差 然后按升序排列 结果用"[""]"括起来 每个数据之间加","

def re(l):
  return l.split()

def s(l):
  return sorted(l)

def m(l):
  return map(int, l)

def r(l):
  return list(map(int, l))

def p(l):
  return print(l)

def c(l):
  return " ".join(l)

def f(l):
  return ",".join(l)

def a(l):
  return ",".join(list(map(str, s(map(int, l)))))

w1 = re(input())
w2 = re(input())

p("[" + f(a(w1)) + "]")
p("[" + f(a(w2)) + "]")