import java.lang.*;
import java.math.BigDecimal;


/**
 * Sample for BigDecimal.
 */
class BigDecimalSample {

  /**
   * Do it.
   */
  public void doIt() {
    BigDecimal length = new BigDecimal("123.45");
    BigDecimal width  = new BigDecimal("67.89");

    System.out.println("length = " + length);
    System.out.println("width  = " + width);
    System.out.println("length + width = " + length.add(width));
    System.out.println("length - width = " + length.subtract(width));
    System.out.println("length * width = " + length.multiply(width));
    System.out.println("length / width = " + length.divide(width, BigDecimal.ROUND_DOWN));
  }

  public static void main(String args[]) {
    BigDecimalSample sample = new BigDecimalSample();
    sample.doIt();
  }
}