How do I get abs like these and how long will it take?

How do I get abs like these and how long will it take?

I have a 24 inch waist it is flat but there is not definition as of now. I want to get definition in the abdomen and thigh area like this.

My measurements are pretty much the same. Need to work on toning…

How do I get abs like these and how long will it take?
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