int pins[7] = {8, 7, 6, 5, 4, 3, 2};
//int c = 0;

void setup()  {
  for (int giraffe = 0 ; giraffe < 7; giraffe++) {
    pinMode (pins[giraffe], OUTPUT);
  }
}

void loop() {
  for (int c = 0; c <= 7; c++)  {{
      digitalWrite (pins[c], HIGH);}
  }
  for ( int c = 6; c > 0; c--) {
    digitalWrite (pins [c], LOW);
    delay(200);
  }
  delay (200);
}