you cant really do both at the same time, atleast not very well. mostly because you need extra calories and protien to gain muscule, and you need fewer calories and more cardio to burn fat. i would say you should focus on building some muscule and then switch over and try to loose fat in a few months (like 4-5 atleast). you'll just end up doing a hole lot of nothing if you try both at the same time. but dont take my word for it, im only 16... seriously, it's probably not a good idea.

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age: 18
height: 5'9"
weight: 198bs
bench 1RM: 275
parallel squat 1RM: 385
deadlift 1RM: N/A
hang clean 1RM: N/A

i wish i could live on crack and protien shakes...