// Simulate(Uno) link sketch to Arduino board here
int ch;


void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
ch=0;
}

void loop() {
  // put your main code here, to run repeatedly:
switch(ch)

{

  case 1: Serial.println("First iteration");
          break;
  case 5: 
  case 6: Serial.println("Five or six");
          digitalWrite(13, HIGH);

          break;

  default: Serial.println("Out of range");
          digitalWrite(13, LOW);


}
ch++;
if (ch==7) ch=0;
delay(1000);
}