Химиястафф

import java.util.Scanner;
import java.io.File;
import java.util.List;
import java.util.ArrayList;
import static java.lang.Character.*;

class Main {

        public static class Transform {

                private final static List<String> unacceptable = new ArrayList<String>() {
                        {
                                add("+");
                                add("=");
                                add("=\\");
                                add("-->");
                        }
                };
                private String toTransform;
                private String transformed;

                public Transform(String value) {
                        toTransform = value;
                }

                public void transform() {
                        for(int index = 0; index < unacceptable.size(); )
                                if(unacceptable.get(index++).equals(toTransform)) {
                                        transformed = toTransform;
                                        return;
                                }
                        int currentIndex = 0;

                        int size = toTransform.length();
                        char[] chars = new char[size];
                        toTransform.getChars(0, size, chars, 0);
                        StringBuilder builder = new StringBuilder();

                        if(isDigit(chars[0]))
                                builder.append(chars[currentIndex++]);

                        while(currentIndex != size) {
                                if(isUpperCase(chars[currentIndex])) {
                                        builder.append(chars[currentIndex]);
                                        while(++currentIndex != size && isLowerCase(chars[currentIndex])) builder.append(chars[currentIndex]);
                                }
                                if(currentIndex != size) {
                                        char current = chars[currentIndex];
                                        if(current == '-' || current == '–' || current == '+') {
                                                builder.append("<sup>");
                                                builder.append(chars[currentIndex++]);
                                                builder.append("</sup>");
                                        }
                                        else if(current == '(' || current == ')') builder.append(chars[currentIndex++]);
                                }
                                if(currentIndex != size) {
                                        if(isDigit(chars[currentIndex])) {
                                                builder.append("<sup>");
                                                builder.append(chars[currentIndex]);
                                                while(++currentIndex != size && isDigit(chars[currentIndex])) builder.append(chars[currentIndex]);
                                                builder.append("</sup>");
                                        }
                                }
                        }

                        transformed = builder.toString();
                }

                public String getTransformed() {
                        return transformed;
                }

        }

        public static void main(String... args) throws Throwable {
                Scanner scanner = new Scanner(new File(args[0]));
                while(scanner.hasNextLine()) {
                        String currentLine = scanner.nextLine();
                        String[] splitted = currentLine.split(" ");
                        for(int index = 0; index < splitted.length; ) {
                                Transform transformer = new Transform(splitted[index++]);
                                transformer.transform();
                                System.out.print(transformer.getTransformed());
                                System.out.print(' ');
                        }
                        System.out.println();
                }
        }

}