question: How many more total yards of field goals did Jason Hanson kick than Mason Crosby?
#1 return field goals 
#2 return #1 of Jason Hanson 
#3 return #1 of Mason Crosby 
#4 return yards of #2 
#5 return yards of #3 
#6 return sum of #4 
#7 return sum of #5 
#8 return difference of #6 and  #7