C133323133112111133133313331333133313231322331323223313121123311   >>    C13332313311211113313331333133313331323132233132322331312112331   <<    C133323133112111133133313331333133313231322331323223313121123313   >>      C133323133112111133133313331333133313231322331323223313121123312   >>