Challenge: C# Foreach - Before, After, Even, Odd, Last, First -

Since C # is not the first, the latter, the last, the first, as part of its foreach.

1. Allow: first, first, even, weird, last, after events
2. This is a challenge # 1

do not execute / execute the primary function (the function executed on all objects of the archive) during the events listed in If you can exceed the above criteria, please! >

I will post my answer below, but it is not elegant nor is it possible, so I want to see what the community can cover.

Hard coded for the loops sometimes gets bothered = (

LINQ ...

• After: .poipoyel (meaning) (left as obscure as your meaning)
• First: .) (Exclamation of your meaning is unclear)
• Last: . ()
• First: . First ()
• Strange: . Where ((x, i) => i% 2 == 1)
• even: . Where ((x, i) => I% 2 == 0)