1 : PROGRAM 2 : 3 : 4 : 5 : colon 6 : [ 7 : 8 : 9 : ] 10: OF 11: CHAR 12: Invalid symbol, probably ';' 13: Invalid symbol, probably ';' 14: THEN 15: 16: DO 17: UNTIL 18: := 19: TO/DOWNTO 20: ) 21: ( 22: 23: 24: 25: = 26: 27: 28: 29: 30: [last revised for Release 3.0b on Feb. 10, 1980 by MGL]