[Python] output is not what it is supposed to be

i am making todo app or program on python in which output is not working according to the code

while True:

user_action = input("type add, show, edit, remove or exit ")
user_action = user_action.strip()


if 'add'in user_action:
todo = user_action[4:]

with open('todos.txt', 'r') as file:
todos = file.readlines()

todos.append(todo)


with open('todos.txt', 'w') as file :
file.writelines(todos)

elif 'show'in user_action:

with open('todos.txt', 'r') as file :
todos = file.readlines()

#new_todos = [item.strip("\n") for item in todos]

for index, items in enumerate(todos):
items = items.strip("\n")
index = index + 1
row = f"{index}-{items}"
print(row)


elif 'edit' in user_action:
number = int(user_action[5:])
print(number)
number = number - 1

with open('todos.txt', 'r') as file:
todos = file.readlines()

new_todo = input("Type the new todo:")
todos[number] = new_todo + "\n"

with open('todos.txt', 'w') as file :
file.writelines(todos)




elif 'remove' in user_action:
number = int(user_action[6:])
with open('todos.txt', 'r') as file:
todos = file.readlines()
index = number - 1
todo_to_remove = todos[index].strip("\n")
todos.pop(index)
with open('todos.txt', 'w') as file :
file.writelines(todos)
message = f"todo {todo_to_remove} was removed from the list"
print(message)


elif 'exit' in user_action:
break
else:
print("Command is not valid ")

print("bye!")


`

hey this is the code for my program but the problem is when i am adding input "add anything" and after that i am asking the program to show my todos then it is not showing me the correct output

type add, show, edit, remove or exit add bro
type add, show, edit, remove or exit show
1-ab
2-cd
3-hihellohikrrish
4-hi
5-
6-hiibro
type add, show, edit, remove or exit add broski
type add, show, edit, remove or exit show
1-ab
2-cd
3-hihellohikrrish
4-hi
5-
6-hiibrobroski


this is the output i received , the output of show should be

1-ab
2-cd
3-hihellohikrrish
4-hi
5-
6-hii
7-bro
8-broski

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