> #include <iostream>
> using namespace std;
>  
> int main (int argc, char **argv)
> {
> 	int a,b,c,d;
> 	cin>>a>>b>>c>>d;
> 	cout<<"5*(5-(1/5))"<<endl;
> 	
> 	return 0;
> }
对你真无语！！！