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 = 0;
            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();
        }
        in.close();
    }
}