.nr PS 9.nr VS 11.ps \\n(PS.vs \\n(VS.nr DO .4i.po \n(DOu.nr CW 3.3i.nr WG 0.25i.rm PF.nr CP 1.nr NT 1 \" no turnover bar.nr PQ \n(PS.nr BM 1i.de MX \" expand month name.if \\n(mo-0 .ds mo J\\\\s-2ANUARY\s0.if \\n(mo-1 .ds mo F\\\\s-2EBRUARY\\\\s0.if \\n(mo-2 .ds mo M\\\\s-2ARCH\\\\s0.if \\n(mo-3 .ds mo A\\\\s-2PRIL\\\\s0.if \\n(mo-4 .ds mo M\\\\s-2AY\\\\s0.if \\n(mo-5 .ds mo J\\\\s-2UNE\\\\s0.if \\n(mo-6 .ds mo J\\\\s-2ULY\\\\s0.if \\n(mo-7 .ds mo A\\\\s-2UGUST\\\\s0.if \\n(mo-8 .ds mo S\\\\s-2EPTEMBER\\\\s0.if \\n(mo-9 .ds mo O\\\\s-2CTOBER\\\\s0.if \\n(mo-10 .ds mo N\\\\s-2OVEMBER\\\\s0.if \\n(mo-11 .ds mo D\\\\s-2ECEMBER\\\\s0...if \nM=1 .so /usr/mel/aip/countrev.if \nM=2 .so /usr/mel/aip/findbig.if \nM=0 .so /usr/lib/tmac/tmac.a.br.af % 1.CM.sp 1i.IZ.rm IZ.de FS.nr FP 3.if \\n(.d*2>\\n(L4 .nr FP 4.if \\n(NC=1 .nr FP 2.GS \\n(FP.br\l'2i'.br.af % 1...de FE.GE...ad.de AE  \"abstract end.ll \\n(LLu.in \\n(XIu.ce 0.if !\\n(.d=\\n(nl .AX.nr AJ 0.nr XR 0.nr ND 0.sp 1...de AB  \"abstract start.ce 0.ll \\n(LLu.fi.ft 1.sp.nr XI \\n(.i.in +\\n(.lu/8u.nr AJ 1.ll -\\n(.lu/8u.ti +2n.nr XR 1...de MHBell LaboratoriesMurray Hill, New Jersey 07974...de RT \" reset params to normal state.ce 0.ul 0.ti 0.bd 1.if !"\\n(.z"" \!.bd 1.if \\n(IP .in -\\n(IQn.if \\n(IP .nr IP -1.ft 1.if \\n(AJ=0 .ps \\n(PS.if \\n(AJ=0 .vs \\n(VSp.RZ.fi...de SH  \" (unnumbered) section heading.RT.ne 3.SP 1.ft 3.ce 1000.nr XR 1.nr HS 1...de B.nr PQ \\n(.f.if t .ft 3.if "\\$1"" .if n .ul 1000.if !"\\$1"" .if n .ul 1.if t .if !"\\$1"" \\$1\\f\\n(PQ\\$2.if n .if \\n(.$=1 \\$1.if n .if \\n(.$>1 \\$1\\c.if n .if \\n(.$>1 \\&\\$2...de I.nr PQ \\n(.f.if t .ft 2.if "\\$1"" .if n .ul 1000.if !"\\$1"" .if n .ul 1.if t .if !"\\$1"" \\$1\\f\\n(PQ\\$2.if n .if \\n(.$=1 \\$1.if n .if \\n(.$>1 \\$1\\c.if n .if \\n(.$>1 \\&\\$2...so /usr/lib/tmac/tmac.srefs.rm CS CE.de UX.ie \\n(GA>0 \s-2UNIX\s0\\$1.el \{\.if n UNIX\\$1*.if t UNIX\\$1\\f1\(dg\\fP.FS.if n *UNIX.if t \(dgUNIXis a Trademark of Bell Laboratories.FE.nr GA 1\}..