int i;
boolean k =true;
void setup() {
  // put your setup code here, to run once:
pinMode(2, OUTPUT);
pinMode(3, INPUT);
Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
 
   i = digitalRead(3);  
   Serial.println(i);
   if (i==1){
    
    digitalWrite(2, k);
    k=!k;
    delay(1000);
    }
    /*
    else{
      digitalWrite(2, k);
      delay(100);
    }*/
/*for (int i = 0; i <= 3; i++) 
  {
    for(int j = 0; j<=i; j++)
    {
      digitalWrite(2,HIGH);
      delay(250);
      digitalWrite(2,LOW);
      delay(250);
      
    }
    
    }
  */
}