What are some workout routines i can do to build a 6 pack?

I'm 15, and i'm already in shape, but i'm just looking for that 6 pack you know? What are some exercises i could do? Could you give me a number too? (Ex. 100 crunches a day) or something like that. By the way I don't care how long it takes.

Here is my workout routine
Free Workout Routine:
Day 1 (Tuesday)
1. Barbell Squats – 135 lbs, 185 lbs, 205 lbs, 225 lbs
2. Flat Bench – 135 lbs, 225lbs x 3, 205 lbs
3. Dumbbell Presses – 50 lbs x 3
4. Incline Bench (Barbell) – 135 lbs x 2, 155 lbs
Day 2 (Thursday)
1. Deadlift – 135 lbs, 155 lbs x 2, 185 lbs
2. Step Ups (dumbbells) – 35 lbs, 50 lbs x 2
3. Dumbbell Rows – 50 lbs x 3
4. Close Grip Pulldowns (Palms facing inward) – 80 lbs x 3
5. Wide Grip Pulldowns – 65 lbs x 3
Day 3 (Saturday)
1. Lunges (Dumbbells) – 50 lbs x 3
2. Military (Overhead) Press – 135 lbs x 3
3. Dumbbell Military Press – 50 lbs x 3
4. Upright Rows – 60 lbs x 3
Hope this help you. I got nice six pack abs in less than 2 months through below site.