C111123313121111121111331333133313331323221211113313222313231111   >>    C11112331312111112111133133313331333132322121111331322231323111   <<    C111123313121111121111331333133313331323221211113313222313231113   >>      C111123313121111121111331333133313331323221211113313222313231112   >>