C31232233133313221211113313331333131211113313223313232233133313231311211   >>    C3123223313331322121111331333133313121111331322331323223313331323131121   <<    C31232233133313221211113313331333131211113313223313232233133313231311213   >>      C31232233133313221211113313331333131211113313223313232233133313231311212   >>