void setup() {
  // put your setup code here, to run once:
for(int i=2;i<10;i++)
    pinMode(i, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:




  for(int i=2;i<=5;i++)
  digitalWrite(i, HIGH);  
for(int i=6;i<10;i++)
  digitalWrite(i, LOW);
delay(150);

for(int i=2;i<=5;i++)
  digitalWrite(i, LOW);  
for(int i=6;i<10;i++)
  digitalWrite(i, HIGH);
delay(150);




}