int switchState = 0;
int lastState = 0;
int teller = 0;

void setup() {
 pinMode(3, OUTPUT);
 pinMode(4, OUTPUT);
 pinMode(5, OUTPUT);
 pinMode(2, INPUT);
 pinMode(6, OUTPUT);
 pinMode(7, OUTPUT);
 pinMode(8, OUTPUT);
}

void loop() {
switchState = digitalRead(2);
if (switchState == LOW) {
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
digitalWrite(5, LOW);
}

else {
digitalWrite(3, LOW);
digitalWrite(4, LOW);
digitalWrite(5, HIGH);
delay(250);
digitalWrite(4, HIGH);
digitalWrite(5, LOW);
delay(250);
}

if (switchState != lastState) {
 if (switchState == HIGH) { teller = teller + 1, lastState=1;}
 if (switchState == LOW){lastState = 0;}
}

if (teller == 0) {digitalWrite(6, LOW); digitalWrite(7, LOW); digitalWrite(8, LOW);}
if (teller == 1) {digitalWrite(6, HIGH); digitalWrite(7, LOW); digitalWrite(8, LOW);}
if (teller == 2) {digitalWrite(6, LOW); digitalWrite(7, HIGH); digitalWrite(8, LOW);}
if (teller == 3) {digitalWrite(6, HIGH); digitalWrite(7, HIGH); digitalWrite(8, LOW);}
if (teller == 4) {digitalWrite(6, LOW); digitalWrite(7, LOW); digitalWrite(8, HIGH);}
if (teller == 5) {digitalWrite(6, HIGH); digitalWrite(7, LOW); digitalWrite(8, HIGH);}
if (teller == 6) {digitalWrite(6, LOW); digitalWrite(7, HIGH); digitalWrite(8, HIGH);}
if (teller == 7) {digitalWrite(6, HIGH); digitalWrite(7, HIGH); digitalWrite(8, HIGH);}
if (teller == 8) {digitalWrite(6, LOW); digitalWrite(7, LOW); digitalWrite(8, LOW); (teller = 0); }
}