passing multiple query parameter to a GET call

Gatling (Open-Source)
1 
this is the request but what i want is to make num value dynamic. so i managed to get the 

value of num and save it to a variable num1.

.exec(http("request_18")
 .get("""/application?num=6986132&1435137743654""")



so what i want is
2

What’s your question exactly?