C31232233133313221211113313331333132233131133131133131133232311   >>    C3123223313331322121111331333133313223313113313113313113323231   <<    C31232233133313221211113313331333132233131133131133131133232313   >>      C31232233133313221211113313331333132233131133131133131133232312   >>