int sensor[13] = {0,0,0,0,0,0,0,0,0,0,0,0,0};
int sflag[13] = {0,0,0,0,0,0,0,0,0,0,0,0,0};

int s[13] = {0,14,15,16,17,18,19,6,7,8,9,10,11};

//int n=0;
int n=24;

void setup() {
  
  Serial.begin(9600);
  
  for (int i = 1; s[i] < 13; i++) pinMode(s[i], INPUT);    
  
  pinMode(5, OUTPUT);
  
  digitalWrite(5, HIGH);
  delay(2000);
  digitalWrite(5, LOW);
  
  for (int i=1; i<13; i++) 
  {
    delay(10);
    Serial.print(n+i+12, BYTE);
  }
  
  }
  
  void loop() {
    // loop from the lowest pin to the highest:
  
    //Serial.println(sensor1);
    
  for (int i=1; i<13; i++)
  {
    sensor[i] = digitalRead(s[i]);
      
    if( sensor[i] && !sflag[i] )
      {
        Serial.print(n+i, BYTE);
        delay(10);
        Serial.print(n+i, BYTE);
        delay(10);
        Serial.print(n+i, BYTE);
        delay(10);
        sflag[i] = 1;
      }
      else if ( !sensor[i] && sflag[i] )
      {
        Serial.print(n+i+12, BYTE);
        delay(10);
        Serial.print(n+i+12, BYTE);
        delay(10);
        Serial.print(n+i+12, BYTE);
        delay(10);
        sflag[i] = 0;
      }
  }    
}