C1111121111331311211331333133313231333132212111113331333133313311232322311   >>    C111112111133131121133133313331323133313221211111333133313331331123232231   <<    C1111121111331311211331333133313231333132212111113331333133313311232322313   >>      C1111121111331311211331333133313231333132212111113331333133313311232322312   >>