JMeter Tutorial: How to Use a Counter in a JMeter Test

[@saurabhsrivastav902]

Hi,
I am hitting the http request that has 2 dynamic variables under for each controller.
One Variable value is from for each controller and another one is from Jmeter counter function variable- looks like this -${hostResponse}/${_V(account${__counter(,)})}
I am performing multiple requests, for first row request, the hostReponse and account-counter values are iterating and updating correctly up to 18 times as per my requirement.
Now for 2nd row of request-the account-counter value is not resetting and starting from first. It is continuing as account_19,account_20,account_21....
Can you help me, how reset counter value back to zero??

[@the_sassy_gupta]

Thanks a lot !