C111123313121111121111331333133313331323221211113311233131132221   >>    C11112331312111112111133133313331333132322121111331123313113222   <<    C111123313121111121111331333133313331323221211113311233131132223   >>      C111123313121111121111331333133313331323221211113311233131132222   >>