object С {
  class A {
    def f1() = println("A.f1()")
    def f2() = println("A.f2()")
  }

  trait Test1 extends A {
    override def f1() = {
      super.f1()
      println("Check f1")
    }
  }

  trait Test2 extends A {
    override def f2() = {
      super.f2()
      println("Check f2")
    }
  }

  def main(args: Array[String]) {
    val a1 = new A with Test1 with Test2
    val a2 = new A with Test2
    a1.f1()
    a1.f2()
    a2.f1()
    a2.f2()
  }

}