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Write a method that displays one of three comments 
when sent to a number representing an athlete's resting pulse rate:  if the 
rate is less than 50, the value answered by the method is to be Wow; 
if the rate is more than 80, the value answered is to be Too High; 
otherwise, the value answered is to be Ok.
Next, write a method that displays one of three comments when sent to a 
number representing an athlete's body fat as a percentage of weight: if the 
athlete's body-fat percentage is less than 10, the value answered is to be 
Wow; if it is more than 20, the value answered is to be 
Too High; otherwise, the value answered is to be Ok.