import java.util.Scanner; import java.lang.Math; // This is no longer needed if we remove Math.pow

class Test { public static void main(String[] args) { Scanner scn = new Scanner(System.in); int q = scn.nextInt();

    // The outer 'if' check is not needed.
    // A 'for' loop with q=0 will just not run, which is correct.
    for(int i = 0; i < q; i++) { // Using i=0; i<q is the more common Java convention
        int a, b, n;
        a = scn.nextInt();
        b = scn.nextInt();
        n = scn.nextInt();

        // The inner 'if' check is also not needed for HackerRank

        int series = a;

        for(int j = 0; j < n; j++) {
            // Use (1 << j) instead of Math.pow(2, j)
            // It's faster and works directly with integers.
            series += (1 << j) * b; 
            System.out.print(series + " ");
        }
        System.out.println();
    }

    // Good practice to always close the scanner!
    scn.close(); 
}

}