void setup() {
  // put your setup code here, to run once:
 pinMode(2, INPUT);
 pinMode(3, OUTPUT);
  pinMode(4, INPUT);
  pinMode(5, OUTPUT);
  pinMode(6, INPUT);
  pinMode(7, OUTPUT);
}

void loop() {
  int y = digitalRead(2);
  int x = digitalRead(4);
  int c = digitalRead(6);
  int cout=0;
  if(y==0){
    digitalWrite(3, HIGH);
  }
  else{
     digitalWrite(3, LOW);
  }


  if(x==1){
    digitalWrite(5, HIGH);
    delay(20);
  }
  else{
    digitalWrite(5, LOW);
    delay(20);
  }


  if(c==1){
    digitalWrite(7, HIGH);
    delay(20);
  }
  else{
    digitalWrite(7, LOW);
    delay(20);
  }


  while(y==0){
    if(y==0){
      digitalWrite(3, HIGH);
      cout++;
    }
    if(cout%2!=0){
      digitalWrite(3, HIGH);
    }
    else{
      digitalWrite(3, LOW);
    }

  }

}