normal work.cpp

#include <iostream>
using namespace std;
// are and perimeter using pointer
/*
void areapei(int r,float * a,float *P){
    *a=3.14*r*r;
    *P=2*3.14*r;

}
int main(){
    int r;
    cin>>r;
    float area,peri;
    areapei(r,&area,&peri);
    cout<<"area is"<<area<<endl;
    cout<<"peri is"<<peri<<endl;
    return 0;

}*/
// returing pointer through function

/*int *fun(int &a){
  a=45;
    return (&a);

}
int main(){
int num=0;
    
    int *p=fun(num);
    cout<< *p<<endl;
    return 0;

}*/
int main(){
    cout<<3%7<<endl;
}