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Занятие 8. Dictionary

Difficulty level:

иконка человека красный иконка человека белая иконка человека зеленая Pythonlib

Task«Gifts by mail»

You work in the site support service. You need to create a guide containing information about the user postal indices to send congratulatory cards to them. You have a list containing user data. Each user is presented in the form of a list, where the first element & ndash; This is the user name (line), and the second element (if any) & ndash; Its postal index (line). Not all users have a postal index. rn
write a program that accepts this list and forms a dictionary in which users are the keys, and values ​​& ndash; Their postal indices. If the user does not have a postal index, then the value should be & nbsp; none .

Input format

Two-dimensional list where each internal list contains information about one user. Each internal list contains the user's name (line) and, optionally, the postal index (line)

Output format

constructive output in the user name: "Postal Code", where "Postal Index" can be a line or "none"

Example

Input

[["Ivan", "123456"], ["Maria"], ["Peter", "654321"], ["Anna", "987654"], ["Svetlana"]]

Output

Ivan: 123456
Maria: None
Peter: 654321
Anna: 987654
Svetlana: None

Hint

There will be no clue here, decide for yourself!

main.py
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