#part 1

inches_to_meters= lambda x: x*0.0254
inches_to_feets = lambda x: x*(1/12)
miles_to_feets=lambda x: x*5280

opposite = lambda x: lambda y: y*y/x(y)
composition= lambda x,y: lambda s: x(y(s))

meters_to_inches=opposite(inches_to_meters)
feets_to_miles=opposite(miles_to_feets)
feets_to_inches = opposite(inches_to_feets)
feets_to_meters=composition(inches_to_meters , opposite(inches_to_feets))
meters_to_feets=composition(inches_to_feets , opposite(inches_to_meters))
miles_to_inches = composition(feets_to_inches, miles_to_feets)
meters_to_miles = composition(feets_to_miles  ,meters_to_feets )
inches_to_miles= composition(feets_to_miles , inches_to_feets)
miles_to_meters=opposite(meters_to_miles)

#print(feets_to_inches(10))
#print(inches_to_meters(10))
#print(inches_to_feets(10))
#print(miles_to_feets(10))
#print(miles_to_inches(20))
print(inches_to_meters(10))
print(feets_to_inches(10))
print(miles_to_inches(10))