int detectOrientation () {
  readColor();

  if((isBlue1(LIGHT_SENSOR_LEFT) && isSand1(LIGHT_SENSOR_RIGHT)) ||
     (isSand1(LIGHT_SENSOR_LEFT) && isBlue1(LIGHT_SENSOR_RIGHT))) {
    if(isBlue1(LIGHT_SENSOR_BACK)) myColor = BLUE;
    else myColor = SAND;
  }
  else if (isBlue1(LIGHT_SENSOR_LEFT)) {
    myColor = BLUE;
    printf("My color is BLUE\n");
  }
  else {
    myColor = SAND;
    printf("My color is SAND\n");
  }
  if(myColor==SAND) {
    if(isSand1(LIGHT_SENSOR_LEFT)) {
      if(isSand1(LIGHT_SENSOR_RIGHT)) {
	if(isSand1(LIGHT_SENSOR_BACK)) return(TO_SELF);
	else return(TO_WALL);
      }
      else return(TO_PLATFORM);
    }
    else return(TO_OPPONENT);
  }
  else{
    if(isBlue1(LIGHT_SENSOR_LEFT)) {
      if(isBlue1(LIGHT_SENSOR_RIGHT)) {
	if(isBlue1(LIGHT_SENSOR_BACK)) return(TO_SELF);
	else return(TO_WALL);
      }
      else return(TO_PLATFORM);
    }
    else return(TO_OPPONENT);
  }
}