3 nested loop issue

[Kingdom Ablaze]

my brain is starting to hurt at getting this loop right. here is what im using:
[rgss] 
for h in 0...625
   for i in 0...24
      for j in 0...24
          if @count > 100000
            Graphics.update
            @count = 0
          end
          @count += 1
          Data[h] = My_Data.new(false,i,j)  
     end
  end
end
[/rgss]
i know im doing this all wrong

what im trying to do is create 625 entrys in Data[] i want this to happen(so you can see the pattern im looking for)

Data[0] = (false,0,0)
Data[1] = (false,0,1)
Data[2] = (false,0,2)
Data[3] = (false,0,3)
Data[4] = (false,0,4)

then latter...

Data[623] = (false,24,22)
Data[624] = (false,24,23)
Data[625] = (false,24,24)

i know its wrong because every entry ends up being (false,24,24) and as dumb as it sounds i cant figure out the right way to loop it.(yes i know why its wrong, i cont. overwrite i an j)