C111112111133131121133133313331333131333132313223313231323132323221   >>    C11111211113313112113313331333133313133313231322331323132313232322   <<    C111112111133131121133133313331333131333132313223313231323132323223   >>      C111112111133131121133133313331333131333132313223313231323132323222   >>