B33113313132313113313223313331311331333131113331333132313231311331323223311231   >>    B3311331313231311331322331333131133133313111333133313231323131133132322331123   <<    B33113313132313113313223313331311331333131113331333132313231311331323223311233   >>      B33113313132313113313223313331311331333131113331333132313231311331323223311232   >>