public class Colours {
    public static void main(String[] args) {
        String[] a = {"white", "black", "green", "brown", "yellow", "blue", "red"};

        for (int i = 0; i < a.length; ++i) {
            System.out.print(a[i] + " ");

            if (i % 3 == 2)
                System.out.println();
        }
    }
}