F get_difference(b1, b2)
   R wrap(b2 - b1, -180.0, 180.0)

print(get_difference( 20.0, 45.0))
print(get_difference(-45.0, 45.0))
print(get_difference(-85.0, 90.0))
print(get_difference(-95.0, 90.0))
print(get_difference(-45.0, 125.0))
print(get_difference(-45.0, 145.0))
print(get_difference(-45.0, 125.0))
print(get_difference(-45.0, 145.0))
print(get_difference(29.4803, -88.6381))
print(get_difference(-78.3251, -159.036))
print(‘’)
print(get_difference(-70099.74233810938, 29840.67437876723))
print(get_difference(-165313.6666297357, 33693.9894517456))
print(get_difference(1174.8380510598456, -154146.66490124757))
print(get_difference(60175.77306795546, 42213.07192354373))