int A = 12;
int lednagreen = 11;
int lednablue = 10;
int lednadilaw = 9;
int lednakahel = 8;
int lednawhite = 7;

void setup() {
  // put your setup code here, to run once:
pinMode( A , OUTPUT);
pinMode(lednagreen, OUTPUT);
pinMode(lednablue, OUTPUT);
pinMode(lednadilaw, OUTPUT);
pinMode( lednakahel , OUTPUT);
pinMode(lednawhite , OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite( A , HIGH);
delay(100);
digitalWrite( A , LOW);
delay(100);
digitalWrite( lednagreen , HIGH);
delay(100);
digitalWrite( lednagreen , LOW);
delay(100);
digitalWrite( lednablue , HIGH);
delay(100);
digitalWrite( lednablue , LOW);
delay(100);
digitalWrite( lednadilaw , HIGH);
delay(100);
digitalWrite( lednadilaw , LOW);
delay(100);
digitalWrite( lednakahel , HIGH);
delay(100);
digitalWrite( lednakahel , LOW);
delay(100);
digitalWrite( lednawhite , HIGH);
delay(100);
digitalWrite( lednawhite, LOW);
delay(100);
}