task main () {

  //variables 
  int speed= 0;
  int counter;
  int WaitingTime = 150;

  wait10Msec(500); //start doing stuff five seconds after program start
  while (true) { //loop until the mars floods
    for (counter=0; counter < 99; counter++) //slowly increase speed
    {
      speed++;
      motor[motorA] = speed;
      motor[motorC] = speed;
      wait1Msec(WaitingTime);
    }
   
    //stay on maximum speed for five seconds
    motor[motorA] = 100;
    motor[motorC] = 100;
    wait10Msec(500);

    for (counter=0; counter < 99; counter++) //slowly decrease speed
    {
      speed--;
      motor[motorA] = speed;
      motor[motorC] = speed;
      wait1Msec(WaitingTime);
    }
  }
}