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 seq = a + (int)Math.pow(2, 0) * b;
        System.out.print(seq + " ");
        for (int j = 1; j < n; j++){
            seq = seq + (int)Math.pow(2, j) * b;
            System.out.print(seq + " ");
        }
        System.out.println();
    }
    in.close();
}