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object Test { class C[B >: String <: Int](x: B) def g[B >: String <: Int](x: B): Int = x def main(args: Array[String]): Unit = { g("foo") new C("bar") } def baz[X >: Y, Y <: String](x: X, y: Y) = (x, y) baz[Int, String](1, "abc") }