make-pchk ex-ham7b.pchk 3 7 0:0 0:3 0:4 0:5 1:1 1:3 1:4 1:6 2:2 2:4 2:5 2:6make-gen  ex-ham7b.pchk ex-ham7b.gen denseNumber of 1s per check in Inv(A) X B is 3.0rand-src  ex-ham7b.src 1 4x1000encode    ex-ham7b.pchk ex-ham7b.gen ex-ham7b.src ex-ham7b.encEncoded 1000 blocks, source block size 4, encoded block size 7transmit  ex-ham7b.enc ex-ham7b.rec 1 bsc 0.05Transmitted 7000 bitsdecode    ex-ham7b.pchk ex-ham7b.rec ex-ham7b.dec bsc 0.05 enum-bit ex-ham7b.genDecoded 1000 blocks, 1000 valid.  Average 16.0 iterations, 4% bit changesverify    ex-ham7b.pchk ex-ham7b.dec ex-ham7b.gen ex-ham7b.srcBlock counts: tot 1000, with chk errs 0, with src errs 47, both 0Bit error rate (on message bits only): 2.000e-02extract   ex-ham7b.gen ex-ham7b.dec ex-ham7b.ext