class A {
    public static void main (String []args){
        int x = 3;
        if (x > 2) {
            System.out.print("a");
            while (x > 0){
                x = x - 1;
                System.out.print("-");
                if (x == 2) {
                    System.out.print("b c");
                }
                if (x == 1) {
                    System.out.print("d");
                    x = x - 1;
                }
            }
        }
    }
}