Java Program to get desired input from sum of two random numbers

I want to make a small program to get the desired result by adding two random numbers. For example our desired number is 30 then random no 1 and no 2 should be 15-15, 13-17, 10-20 or anything else. I made this program which shows the sum of random numbers but not desired sum.

import java.util.*;
import java.util.Random;
 public class Problem { 
public static void main(String[] args) {    

    Scanner sc= new Scanner(System.in);
    Random rand= new Random(); 
      Random random= new Random();
     int r= rand.nextInt(100)+1;
      int r1= random.nextInt(100)+1;

      int sum= r+r1;

     System.out.println(r +" + "+r1+ " sum is: " + sum);  
   } 
}