How many levels of nesting are there in this design?

please see first appendix j whic is attached
What will be printed if the input is 0?
What will be printed if the input is 100?
What will be printed if the input is 51?
What will be printed if the user enters Wingding?
Is this design robust? If so, explain why. If not, explain what you can do to make it robust.
How many levels of nesting are there in this design?
Provide a set of values that will test the normal operation of this program segment. Defend your choices.
Provide a set of test values that will cause each branch to be executed.
Provide a set of test values that test the abnormal operation of this program segment.Click the Assignment Files tab to submit your assignment