3-1

x1

1/1

3-2

x1

1/1

3-3

x1

1/1

3-4

x1

1/1

3-5

x1

1/1

3-6

x1

1/1

3-7

x1

1/1

3-8

x1

1/1

3-9

x1

1/1

3-10

x1

1/1