include <SpreadsheetCell.h>
  
  include <iostream>
  using namespace std;
  
  int main(int argc, char** argv)
  {
    int i, j = 4;
    i = -j; // unary minus
    i = +i; // unary plus
    j = +(-i); // apply unary plus to the result of applying unary minus to i
    j = -(-i); // apply unary minus to the result of applying unary minus to i
  
    i = i + 1;
    i += 1;
    ++i;
    i++;
  
    SpreadsheetCell c1, c2, c3;
    c1.set(4);
    c2.set(4);
  
    c1++;
    ++c1;
    c3 = -c1;
  
    return (0);
  }