test.cpp

#include <iostream>

int main(){
  int i1,i2;
  i1 = i2 = 0;
  std::cout << i1++ << std::endl;
  std::cout << ++i2 << std::endl;
  i1 = i2 = 0;
  std::cout << i1++ + ++i2  + ++i1 + i1++ << std::endl;
  return 0;
}