import math

x = int(eval(input()))

print(('{0}'.format(x**2)))
x = eval(input())

print(x*x)
import math

x = int(eval(input()))
print(("{0}".format(x**2)))

x = eval(input())
print(x * x)

-import math - -x = int(eval(input())) -print(("{0}".format(x**2))) +x = eval(input()) +print(x * x)