#include <iostream>
int main() {
double a;
double b;
double x;
double y;
double z;

/* Begin program */

a = true;
b = false;
x = 7;
if (a) {
x = 5;
if (b) {
y = 4;
} else {
y = 2;
}
}
z = (x * 3 * 7) / y;
if (z > 10) {
y = 5;
}

/* End program */

std::cout << "a: " << a << std::endl;
std::cout << "b: " << b << std::endl;
std::cout << "x: " << x << std::endl;
std::cout << "y: " << y << std::endl;
std::cout << "z: " << z << std::endl;
}