import math
a = 1,5,8,2,4
b = -1
c= 20.8
d = 2.5
print(min(a))
print(abs(b))
print(round(c,1))
x = math.ceil(d)
y = math.floor(d)
print(x)
z = math.trunc(d)
print(y)
print(z)
print(dir(math))
print(math.pow(2,2))
print(math.sqrt(81))
print(help(math.pow))

    
