list1 = [] list2 = []
x = [int(input()), int(input())]
for i in x: list1.append(i) list2.append(i) print(list1) print(list2)
list1.pop() list2.pop(0) print(list1) print(list2)
y = [int(input()), int(input()), int(input())]
for j in y: list1.append(j) list2.append(j) print(list1) print(list2)
z = [] for m in range(0, 4): z.append(list1.pop())
for n in z: print(n, end=' ')