/* Problem 1*/

class SuperClass
{
	public void method(String s)
	{
		System.out.print(s);
	}
}

class Subclass extends Superclass
{
	public void method(s)
	{
		System.out.println(s);
		System.out.println(s);
	}
}

class TestClass
{
	private Superclass createSuperClassObject(String s)
	{
		if (s=="Somnath")
		{
			return new SubClass()
		}
		else
		{
			return new SuperClass()
		}
	}
	public void testing(String s)
	{
		Superclass sp=createSuperClassObject(s);
		sp.method("test")
	}
}

/* Problem 2*/


class SalesPerson
{
	private int accountNo;
	private int item;
	public SalesPerson(int accountNo, int item)
    {
        this.accountNo=accountNo;
        this.item=item;
    }
	public int getAccountNo()
	{
		return(accountNo);
	}
	public int getItem()
	{
		return(item);
	}
	public void setAccountNo(int accountNo)
	{
		this.accountNo=accountNo;
	}
	public void setItem(int item)
	{
		this.item=item;
	}
	public int computePayment()
	{
		return (10*item);
	}
}

class RuralSalesPerson extends SalesPerson
{
    private int kiloMeter;
    public RuralSalesPerson(int accountNo, int item, int kiloMeter)
    {
        super(accountNo, item);
        this.kiloMeter= kiloMeter;
    }
    public int computePayment()
    {
        return(10 * getItem() + (3 * kiloMeter));
    }
	public int getKilometer()
	{
		return(kiloMeter);
	}
	public void setKilometer(int kiloMeter)
	{
		this.kiloMeter=kiloMeter;
	}
}

class SalesUtils
{
    public static void transferAmt(SalesPerson[] arr)
    {
        for(SalesPerson i:arr)
        {
            BankUtils.transfer(i.getAccountNo() , i.computePayment());
        }
    }
}