C31232233133313221211113313331333133313331212111113331313231323311   >>    C3123223313331322121111331333133313331333121211111333131323132331   <<    C31232233133313221211113313331333133313331212111113331313231323313   >>      C31232233133313221211113313331333133313331212111113331313231323312   >>