#include <iostream>

int main() {
  int x = 41;
  std::cout << "x = " << x << "\n";
  x++;
  std::cout << "x = " << x << "\n";
  x--;
  std::cout << "x = " << x << "\n";
  ++x;
  std::cout << "x = " << x << "\n";
  --x;
  std::cout << "x = " << x << "\n";
}