帮改正，求解，2222

Question

def changeinfo(info):
s=''
for i in range(len(info)-1,-1,-1):
s+=str((int(info[i])+5)%10)
return s
n=input()
if len(n)>4:
print('illegal input'

Answer 1

def changeinfo(info):
    s=''
    for i in range(len(info)-1,-1,-1):
        s+=str((int(info[i])+5)%10)
    return s    
n=input()
if len(n)>4:
    print('illegal input')
else:
    n='0'*(4-len(n))+n
    print(changeinfo(n))