int red = 2;
int bloo = A0;
int butt = 8;
int swit = 4;

void setup() {
  pinMode(red, OUTPUT);
  pinMode(bloo, OUTPUT);
  pinMode(swit, INPUT_PULLUP);
  pinMode(butt, INPUT_PULLUP);
}

void loop() {
  if (digitalRead(butt) and digitalRead(swit)) {
    digitalWrite(red, HIGH);
    digitalWrite(bloo, LOW);
  }
  else {
    digitalWrite(bloo, HIGH);
    digitalWrite(red, LOW);
  }

}