@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    StringOperation operation = (StringOperation)o;
    return myRange.equals(operation.myRange) &&
           myReplacement.equals(operation.myReplacement);
  }
@Override
  public boolean equals(Object o)