C132233133112121111331333133313331323331333133313231333121111122223123221   >>    C13223313311212111133133313331333132333133313331323133312111112222312322   <<    C132233133112121111331333133313331323331333133313231333121111122223123223   >>      C132233133112121111331333133313331323331333133313231333121111122223123222   >>