int a=2, b=3, c=4, d=5, e=6, f=7, g=8;
int button1=9;
int button2=10;
int de=500; 

void setup() {
pinMode(a, OUTPUT);
pinMode(b, OUTPUT);
pinMode(c, OUTPUT);
pinMode(d, OUTPUT);
pinMode(e, OUTPUT);
pinMode(f, OUTPUT);
pinMode(g, OUTPUT);
pinMode(button1, INPUT_PULLUP);
pinMode(button2, INPUT_PULLUP);

}

void pull_up(){
  //zero
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,0);
  delay(de);
  //one
  digitalWrite(a,0);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,0);
  delay(de);
  //two
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,0);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,0);
  digitalWrite(g,1);
  delay(de);
  //three
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,1);
  delay(de);
  //four
  digitalWrite(a,0);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //five
  digitalWrite(a,1);
  digitalWrite(b,0);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,0);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //six
  digitalWrite(a,1);
  digitalWrite(b,0);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //seven
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,0);
  delay(de);
  //eight
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //nine
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,0);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
}

void pull_down(){
  //nine
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,0);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //eight
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //seven
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,0);
  delay(de);
  //six
  digitalWrite(a,1);
  digitalWrite(b,0);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //five
  digitalWrite(a,1);
  digitalWrite(b,0);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,0);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //four
  digitalWrite(a,0);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,1);
  digitalWrite(g,1);
  delay(de);
  //three
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,1);
  delay(de);
  //two
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,0);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,0);
  digitalWrite(g,1);
  delay(de);
  //one
  digitalWrite(a,0);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,0);
  delay(de);
  //zero
  digitalWrite(a,1);
  digitalWrite(b,1);
  digitalWrite(c,1);
  digitalWrite(d,1);
  digitalWrite(e,1);
  digitalWrite(f,1);
  digitalWrite(g,0);
  delay(de);
}


void loop() {
int s1= digitalRead(button1);
int s2= digitalRead(button2);
if(s1==0){
  pull_up ();
}
if (s2==0){
  pull_down();
}

}