Write an expression that executes the loop body as long as the user enters a non-negative number. Note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "Program end never reached." The system doesn't print the test case that caused the reported message. Sample outputs with inputs: 9 5 2 -1

Body Body Body Done. 

user_num = int(input()) while ''' Your solution goes here ''': print('Body') user_num = int(input())

print('Done.')