#define START 4
#define R1 8
#define R2 7
#define F1 5
#define F2 6 
#define F 3

void setup(){
pinMode (START,INPUT_PULLUP);
pinMode (R1,OUTPUT);
pinMode (R2,OUTPUT);
pinMode (F1, INPUT_PULLUP);
pinMode (F2,INPUT_PULLUP);
pinMode (F,INPUT_PULLUP);

}
void loop () {

if(digitalRead(START)==LOW){  
while(digitalRead(F2)==HIGH){
digitalWrite(R1, HIGH);
digitalWrite(R2, LOW);

if(digitalRead(F)==LOW){
digitalWrite(R1, LOW);
digitalWrite(R2, LOW);
delay(1000);

}
}



digitalWrite(R1, LOW);
digitalWrite(R2, LOW);
delay(4000);





while(digitalRead(F1)==HIGH){
digitalWrite(R2, HIGH);
digitalWrite(R1, LOW);

if(digitalRead(F)==LOW){
digitalWrite(R1, LOW);
digitalWrite(R2, LOW);
delay(1000);

}
}


digitalWrite(R2,LOW);
digitalWrite(R1,LOW);

}
}