char stevilke[10][7] = {
  {0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 1, 1, 1, 1},
  {0, 0, 1, 0, 0, 1, 0},
  {},
  {},
  {},
  {},
  {},
  {},
  {}
};

char disp[4] = {8, 9, 18, 19};

int d = 2;
int st = 0;
int cas = 0;

void setup() {
  for (int i = 0; i < 8; i++) {
    pinMode(i, OUTPUT);
  }
  for (int i = 0; i < 4; i++) {
    pinMode(disp[i], OUTPUT);
  }
  digitalWrite(7, HIGH);
  cas = millis();
}

void loop() {
  while (millis() - cas < 2000) {
    for (int d = 0; d < 4; d++) {
      digitalWrite(disp[d], HIGH);
      for (int i = 0; i < 7; i++) {
        digitalWrite(i, stevilke[st][i]);
      }
      delay(200);
      for (int i = 0; i < 7; i++) {
        digitalWrite(i, HIGH);
      }
      digitalWrite(disp[d], LOW);
    }
  }
  cas = millis();
  st++;
  if (st == 3) {
    st = 0;
  }
}