void stop(){
    while(digitalRead(2) != HIGH){
        delay(10);
    }
    while(digitalRead(2) == HIGH){
        delay(10);
    }
}

void setup(){
    pinMode ( 2, INPUT);

    pinMode ( 8, OUTPUT);
    pinMode ( 9, OUTPUT);
    pinMode ( 10, OUTPUT);
    pinMode ( 11, OUTPUT);
    pinMode ( 12, OUTPUT);
}

void loop() {
    stop();
    digitalWrite ( 8, HIGH);
    digitalWrite ( 9, LOW);
    digitalWrite ( 10, HIGH);
    digitalWrite ( 11, LOW);
    digitalWrite ( 12, LOW);
    stop();
    digitalWrite ( 8, LOW);
    digitalWrite ( 9, HIGH);
    stop();
    digitalWrite ( 9, LOW);
    digitalWrite ( 8, HIGH);
    digitalWrite ( 10, HIGH);
    stop();
    digitalWrite ( 11, HIGH);
    stop();
    digitalWrite ( 10, LOW);
    digitalWrite ( 11, LOW);
    digitalWrite ( 12, HIGH);
    stop();
    digitalWrite ( 12, LOW);
    digitalWrite ( 11, HIGH);
 }