42 14
int_a_1
define_a_c
int_a_2
add_a_c_to_a
str_b_a
str_c_b
b_to_a
c_to_b
a_to_b
add_a_b_to_c
mul_c_a_to_b
sub_b_c_to_a
div_1_2_to_a
return_0