import math
inp = float(input("r="))
print("Area=",inp*inp*math.pi,sep='')
#print(math.pi  )
b3af8552bdf3e47537e88ccba9a09d4e2b13aba9
<mask token>

<mask token>
print('Area=', inp * inp * math.pi, sep='')

<mask token>
inp = float(input('r='))
print('Area=', inp * inp * math.pi, sep='')

import math
inp = float(input('r='))
print('Area=', inp * inp * math.pi, sep='')

import math
inp = float(input("r="))
print("Area=",inp*inp*math.pi,sep='')
#print(math.pi  )