//prints 2
class C1 extends Object { 
  nat callWhoAmI() {this.whoAmI();}
  nat whoAmI() {printNat(1);}
}
class C2 extends C1 { 
  nat whoAmI() {printNat(2);} 
}
main {
  C1 testObj;
  testObj = new C2();
  testObj.callWhoAmI();
}