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- import java.util.Scanner;
- public class ChetniChisla {
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- String input = scanner.nextLine();
- input = input.replace(".", " ");
- input = input.replaceAll("[^0-9 ]", " ");
- input = input.trim().replaceAll(" +", " ");
- String[] splitStrings = input.split(" ");
- // If no numbers print -1
- if (splitStrings[0].equals("")){
- System.out.println(-1);
- return;
- }
- int maxEven = -1;
- for (int i = 0; i < splitStrings.length; i++) {
- if (Integer.parseInt(splitStrings[i]) % 2 == 0 && Integer.parseInt(splitStrings[i]) > maxEven) {
- maxEven = Integer.parseInt(splitStrings[i]);
- }
- }
- if(maxEven==-1){
- System.out.println(-1);
- } else {System.out.println(maxEven);}
- }
- }
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