29.05(5)

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int[] arr = new int[10];
        System.out.printf("please enter %d numbers",arr.length);
        for (int i=0;i<arr.length;i+=1)
            arr[i]=s.nextInt();
        System.out.printf("The answer is: ");
        for (int i=0;i<arr.length;i+=2)
            System.out.printf("%d ",(arr[i]+1));
        System.out.println(" ");
        System.out.printf("The answer is: ");
        for (int i=0;i<arr.length;i+=1)
            System.out.printf(arr[i]%3==0?"%d ":"",(arr[i]-1));
        System.out.println(" ");

    }
}