const int a = 3;
const int b = 4;
const int c = 5;
const int h = 6;
const int d = 7;
const int e = 8;
const int f = 9;
const int g = 10;
void setup()
{
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(h, OUTPUT);
   digitalWrite(a,1);
   digitalWrite(b,1);
   digitalWrite(c,1);
   digitalWrite(d,1);
   digitalWrite(e,1);
   digitalWrite(f,1);
   digitalWrite(g,1);
   digitalWrite(h,1);
 
}

void loop()
{

  digitalWrite(a,0);
   digitalWrite(b,1);
   digitalWrite(c,0);
   digitalWrite(d,0);
   digitalWrite(e,1);
   digitalWrite(f,0);
   digitalWrite(g,0);
   digitalWrite(h,1);
   delay(1000);
   digitalWrite(a,0);
   digitalWrite(b,1);
   digitalWrite(c,0);
   digitalWrite(d,0);
   digitalWrite(e,0);
   digitalWrite(f,0);
   digitalWrite(g,0);
   digitalWrite(h,1);
delay(1000);


}