tN=exch2_opposingSend_record(N,myTileId)
targetIlo =exch2_itlo_c(tN,targetTile)
targetIhi =exch2_ithi_c(tN,targetTile)
targetJlo =exch2_jtlo_c(tN,targetTile)
targetJhi =exch2_jthi_c(tN,targetTile)
INTEGER pi(2), pj(2), oi, oj, tN