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 first = a+b;
            int sec = (2*b)+first;
            System.out.print(first+" "+sec+" ");
            int sum = sec;
            for(int j=1;j<=n-2;j++){
                
                int s = ((2<<j)*b);      
                sum = sum + s;
                System.out.print(sum+" ");
            } 
            System.out.println(" ");
        }
        in.close();
    }
}