const int led= 2;
const int push=7;


void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(push, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  if(digitalRead(push)==HIGH)
  {
  while(1){
    digitalWrite(led, HIGH);
    delay(1000);
    digitalWrite(led, LOW);
    delay(1000);
  }
  }
  else{
    digitalWrite(led, LOW);
  }
}