B33113313132313113313223313331323132322331323131333133313231232211   >>    B3311331313231311331322331333132313232233132313133313331323123221   <<    B33113313132313113313223313331323132322331323131333133313231232213   >>      B33113313132313113313223313331323132322331323131333133313231232212   >>