text: I = -1
  a, b, c = 7, 6, 5
  for i in range(1, 6):
      i = I + 2
      print('I=%d J=%d' % (i, a))
      a = a + 2
      print('I=%d J=%d' % (i, b))
      b = b + 2
      print('I=%d J=%d' % (i, c))
      c = c + 2
      I = i