#include <iostream>
using namespace std;
void swap (int *a, int *b){
cout << "my swap called\n"; // Note that this is not in the output.
*a = *b;
}
int main(){
int x = 1;
int y = 2;
swap(x,y);
cout << "x=" << x << ", y=" << y << "\n";
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKdm9pZCBzd2FwIChpbnQgKmEsIGludCAqYil7Cgljb3V0IDw8ICJteSBzd2FwIGNhbGxlZFxuIjsgICAgLy8gTm90ZSB0aGF0IHRoaXMgaXMgbm90IGluIHRoZSBvdXRwdXQuCgkqYSA9ICpiOwp9CgppbnQgbWFpbigpewoJaW50IHggPSAxOwoJaW50IHkgPSAyOwoJc3dhcCh4LHkpOwoJY291dCA8PCAieD0iIDw8IHggPDwgIiwgeT0iIDw8IHkgPDwgIlxuIjsKfQ==