()0TQSNC-PS/8 FOCAL, 1971?MB%NAI (X(I)-X(J))7.03,7.03,7.02?MB8NBS TX=X(I);S X(I)=X(J);S X(J)=TX?MCJNCS J=J+1;I (J-N)7.01,7.01,7.04?MC\NDS I=I+1;I (I-K)7.05,7.05,7.06?MC&NES J=I+1;G 7.01?ME)NFR?MC5PBT "E2",!!;G 8.01?MPCQ?MGLDAS SB=0;S J=1?MDZDIS CT=SB+SW;S ST=CT+SG;S XB=G-1;S MB=SB/XB?MDFAS XW=0;S J=1?MD.FBS XW=XW+(N(J)-1)?MD