==== t1 ====
t1

==== t2 ====
t2

==== t3 ====
t3

==== t4 ====
t4

==== t5 ====
t5

==== t6 ====
t6

==== t7 ====
t7

==== t8 ====
t8

==== t9 ====
t9

==== t10 ====
t10

==== t11 ====
t11

==== t12 ====
t12

==== t13 ====
t13

==== t14 ====
t14

==== t15 ====
t15

==== t16 ====
t16

==== t17 ====
t17

==== t18 ====
t18

==== t19test ====
cc -O2 -pipe   -MD -MP  -lm -o t19 /home/src/regress/usr.bin/bc/t19.c 
./t19