void setup() {
  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() {
//0
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);

//1
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);

//2
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);

//3
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);

//4
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);

//5
digitalWrite(13, LOW); //A
digitalWrite(12, HIGH); //B
digitalWrite(11, LOW); //C
digitalWrite(10, LOW); //D
digitalWrite(9, HIGH); //E
digitalWrite(8, LOW); //F
digitalWrite(7, LOW); //G
delay(1000);

//6
digitalWrite(13, LOW); //A
digitalWrite(12, HIGH); //B
digitalWrite(11, LOW); //C
digitalWrite(10, LOW); //D
digitalWrite(9, LOW); //E
digitalWrite(8, LOW); //F
digitalWrite(7, LOW); //G
delay(1000);

//7
digitalWrite(13, LOW); //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);

//8
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, LOW); //G
delay(1000);

//9
digitalWrite(13, LOW); //A
digitalWrite(12, LOW); //B
digitalWrite(11, LOW); //C
digitalWrite(10, LOW); //D 
digitalWrite(9, HIGH); //E
digitalWrite(8, LOW); //F
digitalWrite(7, LOW); //G
delay(1000);

}