Write a program in python for following pattern

Question

1
21
321
4321
54321

Answer 1

Hint: You can either use nested loops or a recursive function

Answer 2

You question can be seen in two ways. The first, is that you want submit a coding challenge to comunity and, in this case, you cannot do it but you have to use appropriated menu (Q&A section is only for practical coding/SL problems).
The second, is that you want help on build the code for the problem but, here also, you HAVE TO post your try because homework lazyness is not good seen here (its a reportable behaviour).

P.S: Dont post multiple similar questions because it can be seen like spam

Thank you