题解 | #密码游戏#

def count(num):
    return (num + 3) % 9


num = input()
num_list = list(num)
list = []

for i in range(len(num_list)):
    list.append(count(int(num_list[i])))

list.reverse()
list[0], list[1] = list[1], list[0]
list[2], list[3] = list[3], list[2]

print("".join(map(str, list)))