C111112111133131121133133313331333133313231333132232321323222311   >>    C11111211113313112113313331333133313331323133313223232132322231   <<    C111112111133131121133133313331333133313231333132232321323222313   >>      C111112111133131121133133313331333133313231333132232321323222312   >>