int x,y;
        getmaxyx(stdscr,y,x);
        WINDOW *win1=newwin(y-2,x,2,0);
        WINDOW *win2=newwin(y-2,x,2,0);
        WINDOW *win3=newwin(y-2,x,2,0);
        wprintw(win1,"win1\n");
        wprintw(win2,"win2\n");
        wprintw(win3,"win3\n");
        wrefresh(win1);
        getch();
        wrefresh(win2);
        getch();
        wrefresh(win3);
        getch();
        wrefresh(win1);//here still "win3" in screen
        getch();
        wrefresh(win2);//also here
        getch();
        wrefresh(win3);
        getch();