void setup(){
pinMode(14, OUTPUT);
pinMode(12, INPUT);
pinMode(27, INPUT);
}

int bt1 = 0,
bt2 = 0,
k1 = 0; 

    void loop() {
bt1 = digitalRead(12);
bt2 = digitalRead(27);
if (( bt1 == 1) || (k1 == 1)){
k1 = 1;
digitalWrite(14, HIGH);
delay(1000);
digitalWrite(14, LOW);
delay(1000);
}
if (bt2 == 1){
k1 = 0;
digitalWrite(14, LOW);
}
 }