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int a = 526;

int b = 793;



a = a ^ b;

b = a ^ b;

a = a ^ b;

printf("%d %d\n", a, b);

#include <iostream>



int main() {

	int x = 777;

	int y = 221;

	x = x + y;

	y = x - y;

	x = x - y;

	std::clog << x << ", " << y << std::endl;

	std::cin.get();

	return 0;

}