Your task is to write a program that reads a sequence of strings and converts them to integer numbers, multiplying by 10. Some input strings may have an invalid format, for instance: "abc". The sequence length may be different. Its ending is indicated by “0”. Zero serves as a stop character and should not be included in the sequence.
If a string can be converted to an integer number, output the number multiplied by 10. Otherwise, output the string "Invalid user input: X" where X is the input string. To better understand the scenario, see the examples below.
To implement this logic, use the exception handling mechanism.
Input data format:
A sequence of integer numbers and other strings, each on a new line.
Output data format:
A sequence of integer numbers and warnings, each on a new line.
