C111123313121111121111331333133313331323221211113313221333132313331333133322331   >>    C11112331312111112111133133313331333132322121111331322133313231333133313332233   <<    C111123313121111121111331333133313331323221211113313221333132313331333133322333   >>      C111123313121111121111331333133313331323221211113313221333132313331333133322332   >>