1	'ILLUSTRATION OF RANDOM SEARCH.  OR:     TWO CRAWLING WORMS WITH PIECE OF CAKE.  ENTER LINE 5 IF NO CAKE WANTED.
    2	'HANNE D. CHRISTIANSEN, UNIV. OF KANSAS. MAY 21, 1983. 1017 BYTES.
 A=0 THEN S=1
 - (X,Y)