1-3
4-9
10-17
18-22
23-26
27-32
33-36
37-43
44-50
51-56
57-62
63-66
67-71
72-75
76-82
83-88
89-92
93-98
99-104
105-108
109-112
1-2
3-6
7-9
10-12
13-14
15-17
18-20
4-7
8-18