I agree with those above: start out with a WF line an the heavier of the two indicated line weights.
I consider the Cortland 333 lines the starting point for what I call "decent" fly lines. $30+ may seem pricey for "fishin strang", but having a quality line really is quite important. Other brands worth considering are Airflo, Scientific Anglers, Rio, and Orvis.
Best value line for a Beginner:
Scientific Anglers Mastery Series Headstart Fly Line at L.L.Bean
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Forum Moderator "Through fishing and hunting, we are confronted with the fact that we are part of the web of life and the natural world, NOT apart from the natural order of things, as our daily lives may often suggest."
Ed Engleman