int swicthState1 = 8;
int swicthState2 = 12;
int LED = 17;

void setup() {
  
  pinMode(8, INPUT);
  pinMode(12, INPUT);
  pinMode(17, OUTPUT);

}

void loop() {
  
  if(8 == HIGH && 12 == HIGH){
    digitalWrite(17, HIGH);
  }
  else{
    digitalWrite(17,LOW);
  }

}