using System;
using System.Collections.Generic;
using System.Linq;

public class Test
{
	public static void Main()
	{
		Print(new[] { 1, 2, 3, 4 });
		Print(new[] { "hello", "world" });
		Print(new[] { "just one!" });
	}

        public static void Print<T>(IEnumerable<T> collection) {
            if (collection.Any()) {
                var seenFirst = false;
                T prev = default(T);
                foreach (var current in collection) {
                    if (seenFirst) Foo(prev);
                    seenFirst = true;
                    prev = current;
                }
                Bar(prev);
            }
        }

        public static void Foo(object o) { Console.WriteLine("Foo: {0}", o); }
        public static void Bar(object o) { Console.WriteLine("Bar: {0}", o); }
}