C111123313121111121111331333133313331323232133313331331123133311233131221311   >>    C11112331312111112111133133313331333132323213331333133112313331123313122131   <<    C111123313121111121111331333133313331323232133313331331123133311233131221313   >>      C111123313121111121111331333133313331323232133313331331123133311233131221312   >>