import math
#
# print("hello..... fucky")
#
# ur_name = "fucky"
#
# a =  3
#
# print(a, ur_name)
# print(a + 12, ur_name)
#
# a = 15/3

print(math.ceil(2.888888))
print(math.ceil(2.1))

print(pow(2, 8))
print(math.sqrt(256))