C111123313121111121111331333133313331323221211113313231333121123213131   >>    C11112331312111112111133133313331333132322121111331323133312112321313   <<    C111123313121111121111331333133313331323221211113313231333121123213133   >>      C111123313121111121111331333133313331323221211113313231333121123213132   >>