CASE1
Add a condition.
Add an ELSE condition.
Add a subcondition on ELSE condition.
The program doesn't function correctly.
CASE2
Add a condition 1.
Add a subcondion 2.
Add a subcondition ELSE on condition 1.
Add a subcondition 3 on ELSE subcondition.
The program doesn't function correctly.
CASE1
CASE2