C11112331312111112111133133313231333132313331333121133132322332231   >>    C1111233131211111211113313331323133313231333133312113313232233223   <<    C11112331312111112111133133313231333132313331333121133132322332233   >>      C11112331312111112111133133313231333132313331333121133132322332232   >>