1 #include<stdio.h>
 2 #include<cstdio>
 3 #include<cmath>
 4 #include<cstring>
 5 #include<iostream>
 6 #include<algorithm>
 7 using namespace std;
 8 
 9 
10 
11 int main()
12 {
13     int a,b;char c;
14     scanf("%d%c%d",&a,&c,&b);
15     if(c=='+')
16         printf("%d\n",a+b);
17     else if(c=='-')
18         printf("%d\n",a-b);
19     else if(c=='*')
20         printf("%d\n",a*b);
21     else if(c=='/')
22         printf("%d\n",a/b);
23     return 0;
24 }