public static Scanner S = new Scanner(System.in);
    public static void main(String[] args) {
        p6();
    }
    public static void p1(){
        for (int i = 1; i < 11; i++) {
            System.out.println(i);
        }
    }
    public static void p2(){
        for (int i = 100; i > 0; i--) {
            System.out.println(i);
        }
    }
    public static void p3(){
        for (int i = 0; i < 101; i=i+2) {
            System.out.println(i);
        }
    }
    public static void p4(){
        System.out.println("input count");
        int x = S.nextInt();
        for (int i = 1; i < x+1; i++) {
            System.out.println(i);
        }
    }
    public static void p5(){
        System.out.println("inpout count");
        int x = S.nextInt();
        int y = 0;
        for (int i = 0; i < x+1; i++) {
            y = y+i;
        }