B3311331313231311331322331333132313331322331323133313331333211332221   >>    B331133131323131133132233133313231333132233132313331333133321133222   <<    B3311331313231311331322331333132313331322331323133313331333211332223   >>      B3311331313231311331322331333132313331322331323133313331333211332222   >>