Before RemoveAll: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
Removing #1
Removing #3
Removing #5
Removing #7
Removing #9
System.Exception: Exception of type 'System.Exception' was thrown.
at Program.<>c.<Main>b__0_0(Int32 item)
at System.Collections.Generic.List`1.RemoveAll(Predicate`1 match)
at Program.Main()
After RemoveAll: [2, 4, 6, 8, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]