Why this code doesn't perform correctly in code coach? Please help.

Question

change_char = {'1':'one', '2':'two', '3':'three', '4':'four','5':'five', '6':'six','7':'seven', '8':'eight','9':'nine','0':'zero','10':'ten'}
nums = ['1','2','3','4','5','6','7','8','9','0']
y = str(input())
for i in y:
if i in nums:
y = y.replace(i, change_char[i])
print(y)

Answer 1

Avinash So you want solution :P ?

Answer 2

I think there is one test case with number 10 which your program doesn't take. It will take 1 and 0 separately and replace with one and zero but it wants ten. Hence the problem..

Answer 3

I already thought about that...

Answer 4

Hmm..

Answer 5

I've also stuck in another code coach...