C111112111133131121133133313331333131333132313232212111113322121   >>    C11111211113313112113313331333133313133313231323221211111332212   <<    C111112111133131121133133313331333131333132313232212111113322123   >>      C111112111133131121133133313331333131333132313232212111113322122   >>