*KEEP,MCROSS. COMMON/MCROSS/SIGT,SIGTNS,SIGTNA,SIGNES,SIGNIS,SGNISD,SGNISC, 1SIGN2N,SIGN3N,SIGNNA,SGNN3A,SGN2NA,SIGNNP,SIGNF,SIGNG,SIGNP, 2SIGND,SIGNT,SGN3HE,SIGNA,SIGN2A,SIGN3A,SIGN2P,SIGNPA,SGNT2A, 3SGND2A