C1111121111331311211331333133313231333132213233313331323133313232211311   >>    C111112111133131121133133313331323133313221323331333132313331323221131   <<    C1111121111331311211331333133313231333132213233313331323133313232211313   >>      C1111121111331311211331333133313231333132213233313331323133313232211312   >>