text: //binary expression for literals and identifier
  void f(void){
  	int i;
  	i=1 + 2;
  return;
  }
  void main(void)
  {
  	//good
  	int i;
  	int j;
  	int a[20];
  	i+j;
  	i-j;
  	i*j;
  	i/j;
  	i=j;
  	i==j;
  	i!=j;
  	i<j;
  	i>j;
  	i<=j;
  	f = i>=0; //should have a problem here
  return;
  }
  