#include <iostream>

using namespace std;

int main (void) {
double x,y,r;
char c;

cin>>x>>c>>y;

if (c == 'x') r=x*y;
 else if (c == '+') r=x+y;
   else if (c == '-') r=x-y;
    else r=x/y;

cout<<x<<c<<y<<"="<<r<<endl;

return 0;
}