Excel
If you can eat grains while running up stairs, you'll excel at everything.
This special workout routine is so hard that, if you can do it, you'll be able to excel at every other thing you try.
しゅう
ひい
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In order to excel at this, though, you need a good pair of shoes (しゅう).
You have to eat the grains AND run up the stairs, or you aren't actually excelling. Good shoes will help you get there faster and protect your toes.