2---5-4-5--------------------------------------------
     1---2-3-2-3-5-7---10-10-7-12-10-7--7-5-3-0-----------
                                         2 раза
     1---7-12-10-12-10-12-10-12--12-15^-12-10--10-12^-10-
         7-7-5-3-5-3-0
                                         2раза