var sideEffects: String = "" class A { var prop: String = "" init { sideEffects += prop + "first" } constructor(x: String) { prop = x sideEffects += "#third" } init { sideEffects += prop + "#second" } constructor(x: Int) { prop += "$x#int" sideEffects += "#fourth" } } fun box(): String { val a1 = A("abc") if (a1.prop != "abc") return "fail1: ${a1.prop}" if (sideEffects != "first#second#third") return "fail1-sideEffects: ${sideEffects}" sideEffects = "" val a2 = A(123) if (a2.prop != "123#int") return "fail2: ${a2.prop}" if (sideEffects != "first#second#fourth") return "fail2-sideEffects: ${sideEffects}" return "OK" }