def loop(g):
  x = None
  for x in g: pass
  return x
def fprint(*xs): 
  for x in xs: print x,
  print

loop(fprint(a,b,c) if a*a+b*b==c*c else None
     for a in xrange(1,20)
     for b in xrange(a,20)
     for c in xrange(b,20))

3 4 5
5 12 13
6 8 10
8 15 17
9 12 15