using System;

​

class Program {

    static void Main() {

        (Action c1, Action c2) = Test();

        c1();

        c1();

        c2();

        c2();

    }

    static (Action, Action) Test() {

        int c1 = 0;

        int c2 = 0;

        return (() => Console.WriteLine(c1++), () => Console.WriteLine(c2++));

    }

}