import javax.swing.*;


public class LotteryOdds{
	public static void main(String args[]){
		String sNumbers = JOptionPane.showInputDialog("Enter in the amount of possible numbers: \n");
		int iNumbers = Integer.parseInt(sNumbers);
		String sBalls = JOptionPane.showInputDialog("Enter in the amount of balls taken: \n");
		int iBalls = Integer.parseInt(sBalls);
		int iFactorialA = 1;
		int iFactorialB = 1;
		int iTest = 0;
		int iFact = 1;
		int iTotal = 1;
		int iCount = 0;
		int iCountA = iBalls;



		do{
			int iNumber = iNumbers;
			iTotal = iNumbers * (iNumber -1);
		   iNumbers--;
		   iCountA--;
		   }while(iCountA > 0);

		   System.out.println("The circumference is: " + iTotal + " ");

		/*for(int iCount = iBalls; iCount > 1; iCount-- && iNumbers--){
			 iTest = iNumbers;
			 iFactorialA = (iNumbers - iCount);
			 iFact = (iTest * iFactorialA);
		}
		*/
		for(iCount = iBalls; iCount > 1 ; iCount--){
			iFactorialB *= iCount;
		}

System.out.println("The circumference is: " + iFactorialB + " ");

		}
	}