71-1

x1

1/1

71-2

x1

1/1

71-3

x1

1/1

71-4

x1

1/1

71-5

x1

1/1

71-6

x1

1/1

71-7

x1

1/1

71-8

x1

1/1

71-9

x1

1/1

71-10

x1

1/1