[BroZeus]

I program in java so here is solution -

Код:

package question2;
import java.util.Scanner;

public class Question2 {
   
  void main() {

    Scanner input = new Scanner(System.in);
    System.out.println("Enter an integer between 1000 and 9999: ");
    int num = input.nextInt();
    System.out.println("Enter a digit (between 0 and 9): ");
    int d = input.nextInt();
    System.out.println("Enter a character: ");
    char ch = input.nextLine.charAt(0);//thats how u enter a char
    String result = (ch-1);//it stores the final result
    int r,c = 1,f=num;
    while(num != 0)
    {
       r = num % 10;
       num = num/10;
      if(c==2 || c==4)result+=d;
      else result+=r;
      c++;
    }
    result+= (ch+1);
    System.out.println("Number was "+f+". Result : "+result);
 
        
   }
    
}

didnt tested it caz currently i dont have bluej on my pc
But should work...