12, 24, 36, 48, 60
9, 18, 27, 36, 45
5, 10, 15, 20, 25
23, 46, 69, 92, 115
11, 22, 33, 44, 55
17, 34, 51, 68, 85
138, 161
102, 119
54, 63
72, 84
66, 77
30, 35
