int segA = 13;
int segB = 12;
int segC = 11;
int segD = 10;
int segE = 9;
int segF = 8;
int segG = 7;

void setup() {
  pinMode(segA, OUTPUT);
  pinMode(segB, OUTPUT);
  pinMode(segC, OUTPUT);
  pinMode(segD, OUTPUT);
  pinMode(segE, OUTPUT);
  pinMode(segF, OUTPUT);
  pinMode(segG, OUTPUT);
}

void loop() {
  digitalWrite(segA, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segF, LOW);
digitalWrite(segE, LOW);
digitalWrite(segG, LOW);
delay(2000);

digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, HIGH);
digitalWrite(segG, LOW);
delay(2000);

digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segG, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, HIGH);
digitalWrite(segD, LOW);
delay(2000);

digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, HIGH);
digitalWrite(segG, LOW);
delay(2000);

}