import math
print(math.pi)
print(math.e)
x=-5.3
print(math.ceil(x))(x))
print(math.floor(x))
print(math.exp(2))
print(math.pow(2,5))
print(math.log(30))
print(math.log(400,20))
print(math.fabs(-3))
print(math.fabs(-3.5))
print(abs(-3.5))
print(math.factorial(3))
print(math.fmod(5,3))
print(math.fsum([1,2,3,4]))
print(math.gcd(12,15))
print(math.sqrt(2))