# python

my_input = str(eval(input()))

print((str(eval(my_input))))



from os import sys



line = sys.stdin.readline().split(" ")



if  line[1] == "+" :

  print((int(line[0])+int(line[2])))

else:

  print((int(line[0])-int(line[2])))

  

#test test test
# python
my_input = str(eval(input()))
print((str(eval(my_input))))

from os import sys

line = sys.stdin.readline().split(" ")
if line[1] == "+":
    print((int(line[0]) + int(line[2])))
else:
    print((int(line[0]) - int(line[2])))
# test test test

-# python -my_input = str(eval(input())) -print((str(eval(my_input)))) +from os import sys + +line = sys.stdin.readline().split(" ") +if line[1] == "+": +    print((int(line[0]) + int(line[2]))) +else: +    print((int(line[0]) - int(line[2]))) +# test test test