R (106 km units)

go:

Return:

100

51.999

12

50

76.725

28

25

70.056

49

8

48.679

94

4

36.833

134

2

27.351

186

0

0.035

70

−2

−27.165

186

−4

−36.699

134

−8

−48.585

94

−25

−70.007

49

−50

−76.697

28

−100

−51.987

12