Joisino wants to evaluate the formula "A op B". Here, A and B are integers, and the binary operator op is either `+` or `-`. Your task is to evaluate the formula instead of her.
a = input()
print(a)

a,b,c = input().split()
if b == "+":
  print(int(a)+int(c))
else:
  print(int(a)-int(c))


