C11112331312111112111133133313231333132313331333132213112333121   >>    C1111233131211111211113313331323133313231333133313221311233312   <<    C11112331312111112111133133313231333132313331333132213112333123   >>      C11112331312111112111133133313231333132313331333132213112333122   >>