private void ReduceStates()
        {
            var newState = 'A';

            for (int i = 0; i < States.Count; i++)
            {
                if (StartState == States[i])
                {
                    StartState = newState.ToString();
                }

                if (FinalStates.Contains(States[i]))
                {
                    FinalStates[FinalStates.IndexOf(States[i])] = newState.ToString();
                }

                foreach (var tr in Transitions)
                {
                    if (tr.CurrentState == States[i])
                    {
                        tr.CurrentState = newState.ToString();
                    }

                    if (tr.NextState == States[i])
                    {
                        tr.NextState = newState.ToString();
                    }
                }

                States[i] = newState.ToString();
                newState++;
            }
        }