import java.util.*;
import java.io.*;

class Solution{
    public static void main(String []argh){
        Scanner in = new Scanner(System.in);
        int t=in.nextInt();
        for(int i=0;i<t;i++){
            int a = in.nextInt();
            int b = in.nextInt();
            int n = in.nextInt();
            int num = a ;
            int iterator  = 1;
              for(int j = 1 ; j <= n ; j ++){
            
            System.out.print(num+(iterator*b) + " ");
               num = num + (iterator * b);
               if(iterator == 1){
                iterator++;
               }
               else{
                iterator = iterator * 2;
               }
        }
        System.out.print("\n");
        }
      
        in.close();
    }
}