题解 | #密码游戏#

nums = input()
num_list = list(nums)
new_list = []
# print(num_list)
for i in num_list:
    new_list.append((str((int(i) + 3) % 9)))

new_list[0],new_list[2] = new_list[2],new_list[0]
new_list[1],new_list[3] = new_list[3],new_list[1]  
print(''.join(new_list))