C1111233131211111211113313331333133313232321333133313331333133313222113311   >>    C111123313121111121111331333133313331323232133313331333133313331322211331   <<    C1111233131211111211113313331333133313232321333133313331333133313222113313   >>      C1111233131211111211113313331333133313232321333133313331333133313222113312   >>