int A_seg=2; 
int B_seg=3; 
int C_seg=4; 
int D_seg=5; 
int E_seg=6; 
int F_seg=7; 
int G_seg=8; 

void setup() {
  // put your setup code here, to run once:
  pinMode(A_seg, OUTPUT);
  pinMode(B_seg, OUTPUT);
  pinMode(C_seg, OUTPUT);
  pinMode(D_seg, OUTPUT); 
  pinMode(E_seg, OUTPUT);
  pinMode(F_seg, OUTPUT); 
  pinMode(G_seg, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  //Display 3
  digitalWrite(A_seg, HIGH);
  digitalWrite(B_seg, HIGH);
  digitalWrite(C_seg, HIGH);
  digitalWrite(D_seg, HIGH);
  digitalWrite(G_seg, HIGH);
  delay(1000); 

  //Turn all OFF 
  digitalWrite(A_seg, LOW);
  digitalWrite(B_seg, LOW);
  digitalWrite(C_seg, LOW);
  digitalWrite(D_seg, LOW);
  digitalWrite(E_seg, LOW);
  digitalWrite(F_seg, LOW);
  digitalWrite(G_seg, LOW);
delay(1000);
  //Display 2 
  digitalWrite(A_seg, HIGH);
  digitalWrite(B_seg, HIGH);
  digitalWrite(G_seg, HIGH);
  digitalWrite(E_seg, HIGH);
  digitalWrite(D_seg, HIGH);
delay(1000);
    //Turn all OFF 
  digitalWrite(A_seg, LOW);
  digitalWrite(B_seg, LOW);
  digitalWrite(C_seg, LOW);
  digitalWrite(D_seg, LOW);
  digitalWrite(E_seg, LOW);
  digitalWrite(F_seg, LOW);
  digitalWrite(G_seg, LOW);
delay(1000);
  //Display 1
  digitalWrite(B_seg, HIGH);
  digitalWrite(C_seg, HIGH);
    //Turn all OFF 
  digitalWrite(A_seg, LOW);
  digitalWrite(B_seg, LOW);
  digitalWrite(C_seg, LOW);
  digitalWrite(D_seg, LOW);
  digitalWrite(E_seg, LOW);
  digitalWrite(F_seg, LOW);
  digitalWrite(G_seg, LOW);
  delay(1000);
    
    //Display 0 
  digitalWrite(A_seg, HIGH);
  digitalWrite(B_seg, HIGH);
  digitalWrite(C_seg, HIGH);
  digitalWrite(F_seg, HIGH);
  digitalWrite(E_seg, HIGH);
  digitalWrite(D_seg, HIGH);
delay(1000);
    //Turn all OFF 
  digitalWrite(A_seg, LOW);
  digitalWrite(B_seg, LOW);
  digitalWrite(C_seg, LOW);
  digitalWrite(D_seg, LOW);
  digitalWrite(E_seg, LOW);
  digitalWrite(F_seg, LOW);
  digitalWrite(G_seg, LOW);


}