C31232233133313221211113313331333132313232233133313233313232232311   >>    C3123223313331322121111331333133313231323223313331323331323223231   <<    C31232233133313221211113313331333132313232233133313233313232232313   >>      C31232233133313221211113313331333132313232233133313233313232232312   >>