void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);//A
pinMode(12, OUTPUT);//B
pinMode(11, OUTPUT);//C
pinMode(10, OUTPUT);//D
pinMode(9, OUTPUT);//E
pinMode(8, OUTPUT);//F
pinMode(7, OUTPUT);//G
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(13, LOW);//A
digitalWrite(12, LOW);//B
digitalWrite(11, LOW);//C
digitalWrite(10, LOW);//D
digitalWrite(9, LOW);//E
digitalWrite(8, LOW);//F
digitalWrite(7, HIGH);//G
delay(1000);
digitalWrite(13, HIGH);//A
digitalWrite(12, LOW);//B
digitalWrite(11, LOW);//C
digitalWrite(10, HIGH);//D
digitalWrite(9, HIGH);//E
digitalWrite(8, HIGH);//F
digitalWrite(7, HIGH);//G
 delay(1000);
 digitalWrite(13, LOW);//A
 digitalWrite(12, LOW);//B
 digitalWrite(11, HIGH);//C
 digitalWrite(10, LOW);//D
 digitalWrite(9, LOW);//E
 digitalWrite(8, HIGH);//F
 digitalWrite(7, LOW);//G
  delay(1000);
  digitalWrite(13,LOW);//A
  digitalWrite(12, LOW);//B
  digitalWrite(11, LOW);//C
  digitalWrite(10,LOW);//D
  digitalWrite(9, HIGH);//E
  digitalWrite(8, HIGH);//F
  digitalWrite(7, LOW);//G
  delay(1000);
  digitalWrite(13, HIGH);//A
  digitalWrite(12, LOW);//B
  digitalWrite(11, LOW);//C
  digitalWrite(10, HIGH);//D
  digitalWrite(9, HIGH);//E
  digitalWrite(8, LOW);//F
  digitalWrite(7, LOW);//G
  delay(1000);
  digitalWrite(13, LOW);
  digitalWrite(12, HIGH);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW);
  digitalWrite(9, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(7, LOW);
  delay(1000);
  digitalWrite(13, LOW);
  digitalWrite(12, HIGH);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW);
  digitalWrite(9, LOW);
  digitalWrite(8, LOW);
  digitalWrite(7, LOW);
  delay(1000);
  digitalWrite(13, LOW);
  digitalWrite(12, LOW);
  digitalWrite(11, LOW);
  digitalWrite(10, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(8, HIGH);
  digitalWrite(7, HIGH);
  delay(1000);
  digitalWrite(13, LOW);
  digitalWrite(12, LOW);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW);
  digitalWrite(9, LOW);
  digitalWrite(8, LOW);
  digitalWrite(7, LOW);
  delay(1000);
  digitalWrite(13, LOW);
  digitalWrite(12, LOW);
  digitalWrite(11, LOW);
  digitalWrite(10, LOW);
  digitalWrite(9, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(7, LOW);
  delay(1000);
}