int g = 13;
int f = 12;
int e = 11;
int d = 10;
int c = 9;
int b = 6;
int a = 7;

int de = 1000;
void zero()
{
  digitalWrite(a,0);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,1);
}
void one()
{
  digitalWrite(a,1);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,1) ;

}
void two()
{
  digitalWrite(a,0);
  digitalWrite(b,0);
  digitalWrite(c,1);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,1);
  digitalWrite(g,0);
}

void three()
{
  digitalWrite(a,0);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,0);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,0) ;
}


void four()
{
  digitalWrite(a,1);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,0);
  digitalWrite(g,0) ;
}

void five()
{
  digitalWrite(a,0);
  digitalWrite(b,1);
  digitalWrite(c,0);
  digitalWrite(d,0);
  digitalWrite(e,1);
  digitalWrite(f,0);
  digitalWrite(g,0);
}


void six()
{
  digitalWrite(a,0);
  digitalWrite(b,1);
  digitalWrite(c,0);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,0);
}

void seven()
{
  digitalWrite(a,0);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,1);
}

void eight()
{
  digitalWrite(a,0);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,0);
}
void nine()
{
  digitalWrite(a,0);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,0);
  digitalWrite(e,1);
  digitalWrite(f,0);
  digitalWrite(g,0);
}


void setup() {
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(a, OUTPUT);


}

void loop() {
   zero();
   delay(de);


   one();
   delay(de);

   two();
   delay(de);

   three();
   delay(de);

   four();
   delay(de);

   five();
   delay(de);

   six();
   delay(de);

   seven();
   delay(de);

   eight();
   delay(de);

   nine();
   delay(de);




}