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#include <iostream>
using namespace std;
class A
{
int m;
int n;
public:
friend ostream & operator<<(ostream &os,const A &a);
friend istream & operator>>(istream &in,A& a);
};
ostream& operator<<(ostream &os,const A&a)
{
return os<<a.m<<" "<<a.n<<endl;
}
istream & operator>>(istream &in,A& a)
{
in>>a.m;
in>>a.n;
return in;
}
int main()
{
A a;
cin>>a;
cout<<a;
system("pause");
return 0;
}