B3311331313231311331322331333132313331322331323133313331312323232212111   >>    B331133131323131133132233133313231333132233132313331333131232323221211   <<    B3311331313231311331322331333132313331322331323133313331312323232212113   >>      B3311331313231311331322331333132313331322331323133313331312323232212112   >>