Tip 1: 1, 2, 5, 10, 21, 26  |  Extra: 6<br>Tip 2: 7, 11, 12, 13, 21, 25  |  Extra: 1<br>Tip 3: 2, 13, 19, 23, 26, 27  |  Extra: 1<br>Tip 4: 4, 8, 13, 15, 16, 23  |  Extra: 1<br>Tip 5: 2, 11, 15, 17, 19, 25  |  Extra: 5<br>