2-1

x1

1/1

2-2

x1

1/1

2-3

x1

1/1

2-4

x1

1/1

2-5

x1

1/1

2-6

x1

1/1

2-7

x1

1/1

2-8

x1

1/1

2-9

x1

1/1

2-10

x1

1/1