import math
from math import *
print(factorial(4))
print(sqrt(4))
print(fabs(-10.6))
print(fabs(10.6))
print(ceil(10.5))
print(floor(10.5))
r=int(input('Enter radius:'))
area=pi*pow(r,2)
print('Area of circle',area)
l=[str(round(math.pi)) for i in range(1,6)]
print(l)

