#include <iostream>
int main()
{
int a=0, b=0, x=0, y=35;
std::cout << "a: " << a << " b: " << b;
std::cout << " x: " << x << " y: " << y << std::endl;
a = 9;
b = 7;
y = x = a+b;
std::cout << "a: " << a << " b: " << b;
std::cout << " x: " << x << " y: " << y << std::endl;
return 0;
}
a: 0 b: 0 x: 0 y: 35
a: 9 b: 7 x: 16 y: 16