C111123313121111121111331333133313331323221211113313231232313321   >>    C11112331312111112111133133313331333132322121111331323123231332   <<    C111123313121111121111331333133313331323221211113313231232313323   >>      C111123313121111121111331333133313331323221211113313231232313322   >>