C111112111133131121133133313331323133313221211111333133313331331123233121   >>    C11111211113313112113313331333132313331322121111133313331333133112323312   <<    C111112111133131121133133313331323133313221211111333133313331331123233123   >>      C111112111133131121133133313331323133313221211111333133313331331123233122   >>