a 1

a 2

a 3

a 4

a 5

d

x 1

70

80

50

60

50

0.7

x 2

80

50

70

90

60

0.65

x 3

60

60

30

50

90

0.6

x 4

50

30

80

70

70

0.5

x 5

30

40

60

50

50

0.4

x 6

80

90

70

60

40

0.7

x 7

60

30

60

50

40

0.4

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