C11112331312111112111133132313331333133313232212111133133112111133133313133311   >>    C1111233131211111211113313231333133313331323221211113313311211113313331313331   <<    C11112331312111112111133132313331333133313232212111133133112111133133313133313   >>      C11112331312111112111133132313331333133313232212111133133112111133133313133312   >>