int led=6;
volatile int output= HIGH;


void setup() {
  // put your setup code here, to run once:
pinMode(led, OUTPUT);
attachInterrupt(digitalPinToInterrupt(2),buttonPressed1,RISING);
attachInterrupt(digitalPinToInterrupt(3),buttonPressed2,RISING);
Serial.begin(1000);


}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println("Normal Operation -------- NO INTERRUPT----- ");

}

void buttonPressed1(){

  output=LOW;
  digitalWrite(led,output);

}

void buttonPressed2(){

  output=HIGH;
  digitalWrite(led,output);

}