C1111233131211111211113313331333133313231333132313331333133313331213111   >>    C111123313121111121111331333133313331323133313231333133313331333121311   <<    C1111233131211111211113313331333133313231333132313331333133313331213113   >>      C1111233131211111211113313331333133313231333132313331333133313331213112   >>