try:

    while True:

        x=input()

        number_string = input()

        number_ary = list(map(int, number_string.split()))

        print(" ".join(str(i) for i in number_ary))

        for i in range(len(number_ary)-1):

          number_ary.reverse()

          number_ary.pop()

          print(" ".join(str(i) for i in number_ary))

          pass

except:

        pass