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Oct 16th, 2019
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  1. public class Program {
  2. public static void main(String[] args) throws IOException {
  3. BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
  4. int a = Integer.parseInt(reader.readLine());
  5. int b = Integer.parseInt(reader.readLine());;
  6. ArrayList<Integer> arr = new ArrayList<>(200000000);
  7. for (int i = 0; i < 200000000; i++) {
  8. arr.add(i);
  9. System.out.println(i);
  10. }
  11. ArrayList<Integer> arrChet = new ArrayList<>();
  12. ArrayList<Integer> arrNotChet = new ArrayList<>();
  13. for (Integer integer : arr) {
  14. if (integer % 2 == 0) {
  15. arrChet.add(integer);
  16. } else {
  17. arrNotChet.add(integer);
  18. }
  19. }
  20. int result = 0;
  21. for (int i = 0; i < arrChet.size(); i++) {
  22. if (arrChet.get(i) == a) {
  23. result = i;
  24. }
  25. }
  26. for (int i = 0; i < arrNotChet.size(); i++) {
  27. if (arrNotChet.get(i) == b) {
  28. result = result - i;
  29. }
  30. }
  31. System.out.println(result);
  32. }
  33. }
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