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++){
            Double sum;
            int a = in.nextInt();
            int b = in.nextInt();
            int n = in.nextInt();
            
            sum = a + (Math.pow(2, 0) * b);
            
                for(int j=1; j<=n; j++){ System.out.printf("%.0f ", sum); 
                sum += (Math.pow(2, j) * b);
                }
            System.out.println();
            
            // for(){
            //     ;
            // }
            
        }
        in.close();
    }
}