void setup() { // put your setup code here, to run once:pinMode(2,OUTPUT);pinMode(3,OUTPUT);pinMode(4,OUTPUT);pinMode(5,OUTPUT);pinMode(10,OUTPUT);pinMode(11,OUTPUT);pinMode(8,OUTPUT);pinMode(9,OUTPUT);digitalWrite(A0, HIGH);digitalWrite(A1, HIGH);digitalWrite(A2, HIGH);digitalWrite(A3, HIGH);digitalWrite(A4, HIGH);digitalWrite(A5, HIGH);digitalWrite(0, HIGH);digitalWrite(1,HIGH);}void loop() { // put your main code here, to run repeatedly:if(digitalRead(A0)==0){delay(200);digitalWrite(2,!digitalRead(2));}if(digitalRead(A1)==0){delay(200);digitalWrite(3,!digitalRead(3));}if(digitalRead(A2)==0){delay(200);digitalWrite(4,!digitalRead(4));}if(digitalRead(A3)==0){delay(200);digitalWrite(5,!digitalRead(5));}if(digitalRead(A4)==0){delay(200);digitalWrite(10,!digitalRead(10));}if(digitalRead(A5)==0){delay(200);digitalWrite(11,!digitalRead(11));}if(digitalRead(0)==0){delay(200);digitalWrite(8,!digitalRead(8));}if(digitalRead(1)==0){delay(200);digitalWrite(9,!digitalRead(9));}}