B3313221211233132322331322123231311331323331333133313231323223321   >>    B331322121123313232233132212323131133132333133313331323132322332   <<    B3313221211233132322331322123231311331323331333133313231323223323   >>      B3313221211233132322331322123231311331323331333133313231323223322   >>