public class Exam02{
    public static void main(String[] args) {
        for(int h = 0; ; h++){
            for(int i = 0; i <= h; i++){
                for(int j = 0; j <= h - i; j++){                     
                    int k = h - i - j;   
                    System.out.println("(" + i + ", " + j + ", " + k + ")");
                }
            }
        }
    }
}