#include <iostream>
#include <string>
using namespace std;
int main()
{
int a, b;
char x;
cin>>a;
cin>>x;
cin>>b;
switch (x)
{
case '+':
cout<<(a + b);
break;
case '-':
cout<<(a - b);
break;
case '*':
cout<<(a * b);
break;
default:
cout<<(a / b);
break;
}
return 0;
}
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