class JSample3_1{
  public static void main(String args[]){
    int num1, num2;

    num1 = 10;
    num2 = 8;
    keisan(num1, num2);

    num1 = 23;
    keisan(num1, 7);

    keisan(15, 22);
  }

  private static void keisan(int n1, int n2){
    System.out.println("num1 = " + n1 + ",num2 = " + n2);
    System.out.println("num1 + num2 = " + (n1 + n2));
    System.out.println("num1 - num2 = " + (n1 - n2));
  }
}