# Setting a counter variable to keep track of something

Dear All,

In my activity, I would like to check how many times consecutively a variable called user_input is over 10. So, I would like to create a counter variable i to keep track of it.

I would like to set 1 to i if the user enters \left| user_input \right| >10 for the first time, and then add 1 to i if the user enters another \left| user_input \right| >10 again consecutively but reset i to 0 if the next value of \left| user_input \right|  is less then 10.

I get stuck because CL does not have the += operator like other languages. Is there a way to get around it?

I am new to CL so I would like to beg your pardon in advance if the answer is obvious.