int pins[] = {2,4,16,17,5,18,19};
int data[10][7] = {
    {0,0,0,0,0,0,1}, 
    {1,0,0,1,1,1,1}, 
    {0,0,1,0,0,1,0}, 
    {0,0,0,0,1,1,0}, 
    {1,0,0,1,1,0,0}, 
    {0,1,0,0,1,0,0}, 
    {0,1,0,0,0,0,0}
};

void setup() {
  for(int i=0;i<7;i++){
    pinMode(pins[i], OUTPUT);
    digitalWrite(pins[i], HIGH);
  }
}

void loop() {
  for(int i=0;i<3;i++){
    for(int j=0;7;j++){
      digitalWrite(pins[i], data[i][j]);
    }
    delay(1000);
  }
}