#include<iostream>
using namespace std;
extern "C"{
int square(int);
float areafunc(int);
char *cpuidfunc(void);
}
int main(){
int radius=10;
int radsquare=square(radius);
cout<<"the radius squared is"<<radsquare<<endl;
float result=areafunc(radius);
cout<<"The area is"<<result<<endl;
cout<<"The CPUID is"<<cpuidfunc()<<endl;
return 0;
}
