public class MsLunch {
  private long c1 = 0;
  private long c2 = 0;
  private Object lock1 = new Object();
  private Object lock2 = new Object();
  public void inc1() {
    synchronized(lock1) {
      c1++;
    }
  }
  public void inc2() {
    synchronized(lock2) {
      c2++;
    }
  }
}