C1111233131211111211113313331333133313231323331333133313223313332233331   >>    C111123313121111121111331333133313331323132333133313331322331333223333   <<    C1111233131211111211113313331333133313231323331333133313223313332233333   >>      C1111233131211111211113313331333133313231323331333133313223313332233332   >>