B3311331313231311331322331333132313231333133313311232313331322132211   >>    B331133131323131133132233133313231323133313331331123231333132213221   <<    B3311331313231311331322331333132313231333133313311232313331322132213   >>      B3311331313231311331322331333132313231333133313311232313331322132212   >>