John drinks 2 energy drinks. 1 of them is a 12-ounce drink with 250 grams of caffeine.  The second drink is 3 times more caffeinated per ounce but only 2 ounces.  He then takes a caffeine pill that has as much caffeine as his 2 drinks combined.  How much caffeine did he consume?
Please reason step by step, and put your final answer within \boxed{}.
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