0
1
2
3
4
0
1
2
3
4
5
6
7
8
9
10
9
0
1
2
3
4
0
5
10
15
20
25
30
35
40
45
40
0
1
2
3
4
0
50
100
150
200
250
228
0
1
2
3
4
0
200
400
600
800
1,000
1,200
1019