dx
0
1
dx
0
1
dx
0
1
dx
0
1
dx
0
1
dx
0
1
dx
0
1
dx
0
1
dx
0
1
dx
0
4
dx
0
3
dx
0
3
dx
0
3
dx
0
1
dx
0
2
dx
0
3
dx
0
2
dx
0
1
dx
0
1
dx
0
2
dx
0
2
dx
0
0
dx
0
1
dx
0
1