import java.util.Observer;
import java.util.Observable;
public class Psychologist implements Observer {
	private int countLower, countHigher = 0;
	public void update(Observable obs, Object arg) {
		int value = ((ObservedSubject) obs ).returnValue() ;
		if( value <= 5 )
			countLower++;
		else
			countHigher++;
	}
	public String opinion() {
		float media;
		if( (countLower + countHigher ) == 0 )
			return( "The Subject doesn’t like changes.");
		else
			if( countLower > countHigher )
				return( "The Subject likes little numbers.");
		else if ( countLower < countHigher )
			return( "The Subject likes big numbers.");
		else
			return( "The Subject likes little numbers and big numbers.");
	}
}