void setup() {
  // put your setup code here, to run once:
  pinMode(10, OUTPUT); //blue
  pinMode(11,OUTPUT); //green
  pinMode(12,OUTPUT); // red
  pinMode(4, INPUT);//push button


}


void loop(){if(digitalRead(4) == HIGH);
    digitalWrite(10, HIGH); //blue
  digitalWrite(10, LOW); //blue
  delay(100);
  digitalWrite(11, HIGH); //green
  digitalWrite(11, LOW); //green
  delay(100);
  digitalWrite(12, HIGH); //red
  digitalWrite(12, LOW); //red
  delay(100);
  }