C11112331312111112111133133313331322133313112121111331323133321311   >>    C1111233131211111211113313331333132213331311212111133132313332131   <<    C11112331312111112111133133313331322133313112121111331323133321313   >>      C11112331312111112111133133313331322133313112121111331323133321312   >>