class Elevator {

    public static void main(String[] args) {
	Elevator e = new Elevator(20); 
	e.up(26); 
	e.down(14); 
        e.up(10); 
	e.down(30); 
        e.up(e.currentFloor() + 3); 
    }

    int floor; 
    Elevator(int floor) {
	this.floor = floor; 
    }  
    void up(int to) {
	if (this.floor >= to) {
	    System.out.println("Sorry, from floor " + this.floor + 
			       " we can't go up to floor " + to); 
	} else {
	    System.out.println("Elevator going up (" + 
			       this.floor +
			       " --> " + to + ")"); 
	    for (int i = this.floor; i <= to; i++) {
		this.floor = i; 
		this.report(); 
	    }
	    System.out.println("Elevator now on floor: " + this.floor); 
	}
    }
    void down(int to) {
	if (this.floor <= to) {
	    System.out.println("Sorry, from floor " + this.floor + 
			       " we can't go down to floor " + to); 
	} else {
	    System.out.println("Elevator going down: (" + 
			       this.floor +
			       " --> " + to + ")"); 
	    for (int i = this.floor; i >= to; i--) {
		this.floor = i; 
		this.report(); 
	    }
	    System.out.println("Elevator now on floor: " + this.floor); 
	}
    }
    void report() {
	System.out.println("   The elevator is now on floor " + this.floor); 
    }
    int currentFloor() { return this.floor; } 
}