import java.util.List;
import java.lang.Integer;
import java.lang.Object;
import java.lang.Boolean;

class wildcardPair {

	make(l) { 
		var p = new Pair(l.get(0), l.get(1));
		return p; 
	}
	//<X>Boolean compare(Pair<X, X> x) { return true; }
	void m(l) {
		Object o = l.get(0);
		
		//Pair<? extends Object, ? extends Object> p;
		//List<?> b;
		//this.compare(p);             //1, type incorrect
		make(l);
		//this.compare(this.make(b));  //2, OK
	} 
}