Assigning even no of participants to conditions

Hello,


I want to assign 30 participants to part x of the survey, and another 30 to a different part (z). This is the code so far:



###################################### READING TASK ######################################

##INSTRUCTIONS##

l: instructions_readtask
t: info
q: X

##ASSIGN TO READING TASK CONDITION##

l: read_random
t: set
- random 1 2

l: read_goto
t: jump
- if $read_random == 1 then goto read_x 30
- if $read_random == 2 then goto read_z 30

##CONDITION: x##

l: read_x
t: info
q: blahblah

##SKIP z##

l: skipz
t: jump
- goto instructions_posttests


##CONDITION: z##

l: read_z
t: info
q: blahblah


--------------------------------------------------------------------

There were no errors after compiling, but will it work? If not, how can I get that distribution? 



Thanks very much!