ans = []
s = input()
for i in range(len(s)):
    ans.append((int(s[i])+3)%9)
ans[0],ans[2]=ans[2],ans[0]
ans[1],ans[3]=ans[3],ans[1]
for i in range(len(ans)):
    print(ans[i],end="")

ans定义成str类型，在交换的时候会报错