C31232233133313221211113313331333132313232233133313233313111133132322331   >>    C3123223313331322121111331333133313231323223313331323331311113313232233   <<    C31232233133313221211113313331333132313232233133313233313111133132322333   >>      C31232233133313221211113313331333132313232233133313233313111133132322332   >>