int a=2,b=3,c=4,d=5,e=6,f=7,g=8;
int d1=9,d2=10,d3=11,d4=12;
int i=0;
void setup() {
  // put your setup code here, to run once:
for(i=a;i<=d4;i++)
{
  pinMode(i, OUTPUT);
}
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(d1, HIGH
);
  for(i=2;i<=g;i++)
  {
    digitalWrite(i, HIGH);
  }
}