#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main()
{
int a,b;
char Free;
scanf("%d %c %d",&a,&Free,&b);
switch(Free)
{
case '+':printf("%d",a+b);
break;
case '-':printf("%d",a-b);
break;
case '*':printf("%d",a*b);
break;
case '/':printf("%d",a/b);
break;
default :break;
}
return 0;
}