C31232233133313221211113313331333132313232233133313233313113313221333112311   >>    C3123223313331322121111331333133313231323223313331323331311331322133311231   <<    C31232233133313221211113313331333132313232233133313233313113313221333112313   >>      C31232233133313221211113313331333132313232233133313233313113313221333112312   >>