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#include <iostream>
#include <list>
#include <string>
using namespace std;

template <class T1,class T2>
void Copy(T1 s,T1 e, T2 x)
{
    for(; s != e; ++s,++x)
        *x = *s;
}

 
template<class T>
class myostream_iteraotr
{
string str;
    ostream& out;
public:
    myostream_iteraotr(ostream& _out,string _str):out(_out),str(_str){}
    void operator++(){}
    myostream_iteraotr operator*(){return *this;}
    void operator=(T s){
        out << s << str;
    }
};


int main()
{    const int SIZE = 5;
    int a[SIZE] = {5,21,14,2,3};
    double b[SIZE] = { 1.4, 5.56,3.2,98.3,3.3};
    list<int> lst(a,a+SIZE);
    myostream_iteraotr<int> output(cout,",");
    Copy( lst.begin(),lst.end(),output); 
    cout << endl;
    myostream_iteraotr<double> output2(cout,"--");
    Copy(b,b+SIZE,output2);
    return 0;
}