void setup()
{
  Serial.begin(9600);
    int i = 0; 
    while (i <= 11)
    {
      if (i % 2 != 0) { i++; continue; }
        Serial.print("outer loop i# ");
        Serial.println(i);
        delay(200);
      int j = 0; 
      while (j <= 11) 
        {
          if (j % 2 != 0) { j++; continue; }
            Serial.print("  inner loop j# ");
            Serial.println(j);
            delay(200);
            j++;
        }
      i++;
    }
}
void loop() {}