Dragon#

package october2015;

import java.util.*;
import java.util.regex.*;

public class DragonSharp {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int lines = Integer.parseInt(scan.nextLine());
        String[] input = new String[lines];
        Pattern patternif = Pattern.compile("[a-z]+ \\(([0-9]+)(\\=\\=|\\>|\\<)+([0-9]+)\\) (.*out) (\\\"(.+)\\\"\\;)");
        Pattern patternelse = Pattern.compile("else (.*out) (\\\"(.+)\\\"\\;)");

        int validCounter = 0;
        int trueCount = 0;

        for (int i = 0; i < lines; i++) {
            input[i] = scan.nextLine();
            Matcher matchIf = patternif.matcher(input[i]);
            Matcher matchElse = patternelse.matcher(input[i]);
            if (matchIf.find()) {
                validCounter++;
            } else if (matchElse.find()) {
                validCounter++;
            } else { break;}
        }
        if (validCounter == lines) {
            for (int i = 0; i < lines; i++) {
                Matcher matchIf = patternif.matcher(input[i]);
                Matcher matchElse = patternelse.matcher(input[i]);
                if (matchIf.find()) {
                    boolean isTrue = false;
                    int num1 = Integer.parseInt(matchIf.group(1));
                    int num2 = Integer.parseInt(matchIf.group(3));
                    String condition = matchIf.group(2);
                    if (condition.equals("==") && num1 == num2) {
                        isTrue = true;
                    } else if (condition.equals(">") && num1 > num2) {
                        isTrue = true;
                    } else if (condition.equals("<") && num1 < num2) {
                        isTrue = true;
                    }

                    if (isTrue) {
                        String[] loops = matchIf.group(4).split(" ");
                        if (loops.length == 1) {
                            System.out.println(matchIf.group(6));
                        } else {
                            for (int j = 0; j < Integer.parseInt(loops[1]); j++) {
                                System.out.println(matchIf.group(6));
                            }
                        }
                        trueCount++;
                    }

                } else if (matchElse.find() && trueCount == i - 1) {
                    String[] loops = matchElse.group(1).split(" ");
                    if (loops.length == 1) {
                        System.out.println(matchElse.group(3));
                    } else {
                        for (int j = 0; j < Integer.parseInt(loops[1]); j++) {
                            System.out.println(matchElse.group(3));
                        }
                    }
                    trueCount++;
                } else {
                    trueCount++;
                }
            }
        } else {
            System.out.println("Compile time error @ line " + (validCounter + 1));
        }
    }
}