public static void main(String[] args) {

            Scanner scanner = new Scanner(System.in);
            System.out.println("введите строку: ");

            String romanicNumbers = scanner.nextLine();

            char[] charsArray = romanicNumbers.toCharArray();

            int number = 0;

            for (int i = 0; i < charsArray.length; i++) {
                char plus = '+';
                char minus = '-';
                if((plus==charsArray[i]) | (minus==charsArray[i])){
                    number = i;
                    break;
                }
            }

            //порядковый номер "+" или "-" в массиве
            System.out.println(number);

            //получение правого и левого числа
            String left = romanicNumbers.substring(0, number);
            String right = romanicNumbers.substring(number+1, romanicNumbers.length());

            //вывод правого и левого числа в консоль
            System.out.println("StringNumber # 1 " + left);
            System.out.println("StringNumber # 2 " + right);

            int leftNumber = 0;

            char [] leftCharsArray = left.toCharArray();

            //System.out.println("leftCharsArray[leftCharsArray.length-1] : " + leftCharsArray[leftCharsArray.length-1]);

            if(leftCharsArray[leftCharsArray.length-1]=='X' || leftCharsArray[leftCharsArray.length-1]=='V'){
                for (int i =  leftCharsArray.length-1; i >=0 ; i--) {

                    if(leftCharsArray[i] == 'V'){
                        leftNumber +=5;
                    } else if(leftCharsArray[i] == 'X'){
                        leftNumber +=10;
                    } else if(leftCharsArray[i] == 'I'){
                        leftNumber -=1;
                    }
                    //System.out.println(leftNumber);
                }
            } else {
                    for (int i =  leftCharsArray.length-1; i >=0 ; i--) {

                    if(leftCharsArray[i] == 'V'){
                        leftNumber +=5;
                    } else if(leftCharsArray[i] == 'X'){
                        leftNumber +=10;
                    } else if(leftCharsArray[i] == 'I'){
                        leftNumber +=1;
                    }
                    //System.out.println(leftNumber);
                }
            }


            System.out.println("левое число после парсинга :" + leftNumber);

            //тоже самое для правого числа:

            int rightNumber = 0;

            char [] rightCharsArray = right.toCharArray();

            //System.out.println("leftCharsArray[leftCharsArray.length-1] : " + leftCharsArray[leftCharsArray.length-1]);

            if(rightCharsArray[rightCharsArray.length-1]=='X' || rightCharsArray[rightCharsArray.length-1]=='V'){
                for (int i =  rightCharsArray.length-1; i >=0 ; i--) {

                    if(rightCharsArray[i] == 'V'){
                        rightNumber +=5;
                    } else if(rightCharsArray[i] == 'X'){
                        rightNumber +=10;
                    } else if(rightCharsArray[i] == 'I'){
                        rightNumber -=1;
                    }

                }
            } else {
                    for (int i =  rightCharsArray.length-1; i >=0 ; i--) {

                    if(rightCharsArray[i] == 'V'){
                        rightNumber +=5;
                    } else if(rightCharsArray[i] == 'X'){
                        rightNumber +=10;
                    } else if(rightCharsArray[i] == 'I'){
                        rightNumber +=1;
                    }
                    //System.out.println(leftNumber);

                }
            }

            System.out.println("правое число после парсинга :" + rightNumber);

    }