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

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 sum=a;
            for(int j=0;j<n;j++)
            {
              sum=sum+(int)(Math.pow(2,j))*b;
              System.out.printf("%d ",sum); 
            }
            System.out.printf("\n");
        }
        in.close();
        
    }
}