C31232233133313221211113313331333132313232233133313233313121123233311   >>    C3123223313331322121111331333133313231323223313331323331312112323331   <<    C31232233133313221211113313331333132313232233133313233313121123233313   >>      C31232233133313221211113313331333132313232233133313233313121123233312   >>