Steady squares

Steady squares is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

Task

The 3-digit number 376 in the decimal numbering system is an example of numbers with the special property that its square ends with the same digits: 376*376 = 141376. Let's call a number with this property a steady square. Find steady squares under 10.000

Python

<lang python> print("working...") print("Steady numbers under 10.000 are:") limit = 10000

for n in range(1,limit):

   nstr = str(n)
   nlen = len(nstr)
   square = str(pow(n,2))
   rn = square[-nlen:]
   if nstr == rn:
      print(str(n) + " " + str(square))

print("done...") </lang>

Output:

working...
Steady numbers under 10.000 are:
1 1
5 25
6 36
25 625
76 5776
376 141376
625 390625
9376 87909376
done...

Ring

<lang ring> see "working..." +nl limit = 10000

for n = 1 to limit

   nstr = string(n)
   len = len(nstr)
   square = pow(n,2)
   rn = right(string(square),len)
   if nstr = rn
      see "" + n + " " + square + nl
   ok

next

see "done..." +nl </lang>

Output:

working...
Steady numbers under 10.000 are:
1 1
5 25
6 36
25 625
76 5776
376 141376
625 390625
9376 87909376
done...