#include <Arduino.h>

#define ledA 19
#define ledB 21
#define ledF 18
#define ledG 5
#define ledE 4
#define ledD 2 
#define ledC 15

void setup() {
  pinMode(ledA, OUTPUT);
  pinMode(ledB, OUTPUT);
  pinMode(ledC, OUTPUT);
  pinMode(ledD, OUTPUT);
  pinMode(ledE, OUTPUT);
  pinMode(ledF, OUTPUT);
  pinMode(ledG, OUTPUT);
  
}

void loop() {
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, HIGH);
  digitalWrite(ledE, LOW);
  digitalWrite(ledF, HIGH);
  digitalWrite(ledG, HIGH);
delay(1000);
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, HIGH);
  digitalWrite(ledE, HIGH);
  digitalWrite(ledF, HIGH);
  digitalWrite(ledG, HIGH);
delay(1000);
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, LOW);
  digitalWrite(ledE, LOW);
  digitalWrite(ledF, LOW);
  digitalWrite(ledG, LOW);
delay(1000);
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, LOW);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, HIGH);
  digitalWrite(ledE, HIGH);
  digitalWrite(ledF, HIGH);
  digitalWrite(ledG, HIGH);
delay(1000);
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, LOW);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, HIGH);
  digitalWrite(ledE, LOW);
  digitalWrite(ledF, HIGH);
  digitalWrite(ledG, HIGH);
delay(1000);
  digitalWrite(ledA, LOW);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, LOW);
  digitalWrite(ledE, LOW);
  digitalWrite(ledF, HIGH);
  digitalWrite(ledG, HIGH);
delay(1000);
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, HIGH);
  digitalWrite(ledE, LOW);
  digitalWrite(ledF, LOW);
  digitalWrite(ledG, HIGH);
delay(1000);
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, LOW);
  digitalWrite(ledD, HIGH);
  digitalWrite(ledE, HIGH);
  digitalWrite(ledF, LOW);
  digitalWrite(ledG, HIGH);
delay(1000);
  digitalWrite(ledA, LOW);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, LOW);
  digitalWrite(ledE, LOW);
  digitalWrite(ledF, LOW);
  digitalWrite(ledG, LOW);
delay(1000);
  digitalWrite(ledA, HIGH);
  digitalWrite(ledB, HIGH);
  digitalWrite(ledC, HIGH);
  digitalWrite(ledD, HIGH);
  digitalWrite(ledE, HIGH);
  digitalWrite(ledF, HIGH);
  digitalWrite(ledG, LOW);
delay(1000);
}