C132233133112121111331333133313231333132333131211113313132332323321   >>    C13223313311212111133133313331323133313233313121111331313233232332   <<    C132233133112121111331333133313231333132333131211113313132332323323   >>      C132233133112121111331333133313231333132333131211113313132332323322   >>