#include <Servo.h>

Servo myservo[5];
byte ps [5] = {4,5,6,7,8};

void setup ()
{
  for ( byte n = 0; n < 5; n ++ ) myservo [n].attach ( ps [n] );
  randomSeed(A2);
  for ( byte S = 0; S < 6; S ++ )
  {
    byte sn = random ( 5 );
    delay ( 10000 );
    myservo [sn].write ( 0 );
    delay ( 3000 );
    myservo [sn].write ( 90 );
  }
  pinMode ( 13, OUTPUT );
}

void loop ()
{
  delay (400);
  digitalWrite (13, !digitalRead (13));
}