int A = 2;
int B = 3;
int C = 4;
int D = 6;
int DP = 5;
int E = 7;
int F = 8;
int G = 9; 
  
int AscendButton = 13;
int DescendButton = 12;
int StopButton = 11;
int counter = -1;
int buttonUpState = 0;
int lastButtonUpState = 0;
int buttonDownState = 0;
int lastButtonDownState = 0; 
int stopstate = 0;
  
void setup() { 
  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);
  pinMode(G, OUTPUT);
  pinMode(DP, OUTPUT); 
  digitalWrite(DP, HIGH);
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);

} 


void loop() {
  buttonUpState = digitalRead(AscendButton); 
  buttonDownState = digitalRead(DescendButton);
  
  A:
  buttonUpState = digitalRead(AscendButton);
    if (buttonUpState == HIGH) {
      counter = 10;
      delay(500); 
     goto B;
     
    } 
    

  buttonDownState = digitalRead(DescendButton);
    if (buttonDownState == HIGH) {
    counter = 10;
    delay(500);
     goto C;
     
    } 
  
  stopstate = digitalRead(StopButton);
  if (stopstate == HIGH){
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
    }

    goto A;



    B: 
    buttonUpState = digitalRead(AscendButton);
     if(counter >= 9) {
        counter = -1;
      } 
      counter++; 
            
      changeNumber(counter);       
    for(int x1 = 0 ; x1<=499 ; x1++) {
  stopstate = digitalRead(StopButton);
  if (stopstate == HIGH){
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  goto A;
    }
    
  buttonDownState = digitalRead(DescendButton);
  if (buttonDownState == HIGH) {
  counter = 10;
  goto C;
  delay(500);
  } 
  delay(1);
  }
  goto B; 





    C:
    buttonDownState = digitalRead(DescendButton);
    if(counter == 0) {
    counter = 10;
    }
    counter--;
    changeNumber(counter);
      
     for(int x1 = 0 ; x1<=499 ; x1++) {
    stopstate = digitalRead(StopButton);
  if (stopstate == HIGH){
  digitalWrite(A, HIGH);
  digitalWrite(B, HIGH);
  digitalWrite(C, HIGH);
  digitalWrite(D, HIGH);
  digitalWrite(E, HIGH);
  digitalWrite(F, HIGH);
  digitalWrite(G, HIGH);
  goto A;
  } 
    buttonUpState = digitalRead(AscendButton);
    if (buttonUpState == HIGH) {
      counter = -1;
    goto B;
    delay(500); 
    } 
    delay(1);
     }
     goto C;

  
 

} 
 
void changeNumber(int buttonPress) {
  switch (buttonPress) {
    case 0: 
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, LOW);
    digitalWrite(G, HIGH);
    break;
    case 1: 
    digitalWrite(A, HIGH);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, HIGH);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    break; 
    case 2:
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, HIGH);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, HIGH);
    digitalWrite(G, LOW);
    break; 
    case 3:
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, HIGH);
    digitalWrite(F, HIGH);
    digitalWrite(G, LOW);
    break; 
    case 4:
    digitalWrite(A, HIGH);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, HIGH);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
    break; 
    case 5: 
    digitalWrite(A, LOW);
    digitalWrite(B, HIGH);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, HIGH);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
    break; 
    case 6: 
    digitalWrite(A, LOW);
    digitalWrite(B, HIGH);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
    break; 
    case 7:
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, HIGH);
    digitalWrite(E, HIGH);
    digitalWrite(F, HIGH);
    digitalWrite(G, HIGH);
    break; 
    case 8: 
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, LOW);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
    break; 
    case 9: 
    digitalWrite(A, LOW);
    digitalWrite(B, LOW);
    digitalWrite(C, LOW);
    digitalWrite(D, LOW);
    digitalWrite(E, HIGH);
    digitalWrite(F, LOW);
    digitalWrite(G, LOW);
    break;
  } 
}