This is MetaPost, Version 1.005 (Web2C 7.5.7) (mem=mpost 2010.2.18)  1 APR 2010 10:32
**pumping_kf_c.mmp
(pumping_kf_c.mmp [0] [1] [2] [3] )
4 output files written: pumping_kf_c.0 .. pumping_kf_c.3