//prints 2
class C1 extends Object {
  nat callWhoami(nat unused) {this.whoami(0);}
  nat whoami(nat unused) {printNat(1);}
}
class C2 extends C1 {
  nat whoami(nat unused) {printNat(2);}
}
main {
  C1 testObj;
  testObj = new C2();
  testObj.callWhoami(0);
}