int num[7][10] = {
  {0, 1, 0, 0, 1, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 1, 1, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 1, 0, 0, 1, 0, 0},
  {0, 1, 0, 1, 1, 1, 0, 1, 0, 1},
  {0, 1, 1, 1, 0, 0, 0, 1, 0, 0},
  {1, 1, 0, 0, 0, 0, 0, 1, 0, 0}
};



void setup() {
  
  int i=2;
  while(i <= 9) {
    pinMode(i, OUTPUT);
    i++;
  }
}

void model1(int digit) {
   int j = digit;
   digit = 0;
   int i = 0;
   
   while(i < 7) {
    int cvt = num[digit++][j];
    digitalWrite(i + 2, cvt);
    i++;
  }

  digitalWrite(9, HIGH);
}
void loop() {

  int i=0;
  while(i<=9){
    model1(i);
    delay(500);
    i++;
  }
}