C11112331312111112111133133313231333132313331333121333132322211   >>    C1111233131211111211113313331323133313231333133312133313232221   <<    C11112331312111112111133133313231333132313331333121333132322213   >>      C11112331312111112111133133313231333132313331333121333132322212   >>