// bank DIS
// encapsulation

class Bank {
    private double savings;

    // set value of savings
    public void set_s(double savings) {
	this.savings = savings;
    }

    // get value of savings
    public double get_s() {
	return savings;
    }

}

public class banking {
    public static void main(String[] args) {
	
	Bank b = new Bank();
	b.set_s(100);
	System.out.println(b.get_s());
    }

}