//int val;

void setup() {
  Serial.begin(115200);

  pinMode(2, OUTPUT); 
  pinMode(3, OUTPUT); 
  pinMode(4, OUTPUT); 
  pinMode(5, OUTPUT); 
  pinMode(6, OUTPUT); 
  pinMode(8, INPUT_PULLUP); 

}

void loop() {
 

  led(2,1);
  led(2,0);
  led(3,1);
  led(4,1);
  led(5,1);
  

}


void led(int pin, int state) {

  digitalWrite(pin, state);
  delay(200);


}



/////////////////////////////

void ledPin(int pin) {

  digitalWrite(pin, HIGH);
  delay(200);
  digitalWrite(pin, LOW);
  delay(200);

}
/////////////////////////////
int sum(int x,int y,int z) {
  int result;
  result = x+y+z;
  return result;

}