Needs Answer
s=0
n=1
Repeate[100, SetValue[s,s+n], SetValue[n,n+1]]
I get s=5050, n=101. that's ok.
When I use
Repeate[100, If[s+n<500, SetValue[s,s+n]], SetValue[n,n+1]]
I get the same result. but I want s+n<500 finally.
If[] has priority over Repeat[], why?
The same question 
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