>>> for i in range(2, 101):
...   if (i % 3 == 0) or (i % 7 == 0):
...     print(i, end=' ')
...
3 6 7 9 12 14 15 18 21 24 27 28 30 33 35 36 39 42 45 48 49 51 54 56 57 60 63 66 69 70 72 75 77 78 81 84 87 90 91 93 96 98 99 >>>