../ a 22-Sep-1993 20:48 15 b 22-Sep-1993 20:48 15 c 22-Sep-1993 20:48 20 e 22-Sep-1993 20:48 71 f 22-Sep-1993 20:48 45 foo 22-Sep-1993 20:48 1214 precedence 22-Sep-1993 20:48 1214 s 22-Sep-1993 20:48 238 sa 22-Sep-1993 20:48 170 sb 22-Sep-1993 20:48 58 sc 22-Sep-1993 20:48 16 tt 22-Sep-1993 20:48 26 ttt 22-Sep-1993 20:48 134 x 22-Sep-1993 20:48 36 y 22-Sep-1993 20:48 15