#include <iostream>
using namespace std;
int a ,b;
int ile=1;
char co;
int main()
{
while(ile<5)
{
cin>>co;
cin >>a>>b;
ile++;
}
switch(co)
{
case '+': cout << a+b<<endl;
break;
case '-': cout <<a-b<<endl;
break;
case '*': cout <<a*b<<endl;
break;
case '/': cout <<a/b<<endl;
break;
case '%': cout<< a%b<<endl;
break;
}
return 0;
}
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