#include <iostream>
using namespace std;
int add(int &x, int &y)
{
x = x+y;
cout<<"x="<<x<<endl;
cout<<"y="<<y<<endl;
return x;
}
int main() {
int a,b;
cin>>a>>b;
int sumation = add(a,b);
cout<<sumation<<endl;
cout<<"a="<<a<<endl<<"b="<<b<<endl;
return 0;
}
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