void setup() {
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(A1, INPUT_PULLUP);
}
void loop() {
if(digitalRead(A1)==LOW){digitalWrite(2,HIGH);}
if(digitalRead(A1)==LOW){digitalWrite(3,HIGH);}
if(digitalRead(A1)==LOW){digitalWrite(4,HIGH);}
if(digitalRead(A1)==LOW){digitalWrite(5,HIGH);}

if(digitalRead(A1)==HIGH){digitalWrite(2,LOW);}
if(digitalRead(A1)==HIGH){digitalWrite(3,LOW);}
if(digitalRead(A1)==HIGH){digitalWrite(4,LOW);}
if(digitalRead(A1)==HIGH){digitalWrite(5,LOW);}
}