Code:
#Write your code here
class e(Exception):
"n and p should be non-negative"
class Calculator():
def power(self, n, p):
try:
if n | p < 0:
raise e
else:
return (n ** p)
except e:
return ("n and p should be non-negative")
myCalculator=Calculator()
T=int(input())
for i in range(T):
n,p = map(int, input().split())
try:
ans=myCalculator.power(n,p)
print(ans)
except Exception as e:
print(e)
