void setup() 

{
// Double light chase

pinMode(22, OUTPUT);
pinMode(23, OUTPUT);
pinMode(24, OUTPUT);
pinMode(25, OUTPUT);
pinMode(26, OUTPUT);
pinMode(27, OUTPUT);
pinMode(28, OUTPUT);
pinMode(29, OUTPUT);
pinMode(30, OUTPUT);
pinMode(31, OUTPUT);
pinMode(32, OUTPUT);
pinMode(33, OUTPUT);
pinMode(34, OUTPUT);
pinMode(35, OUTPUT);
pinMode(36, OUTPUT);
pinMode(37, OUTPUT);
pinMode(38, OUTPUT);
pinMode(39, OUTPUT);
pinMode(40, OUTPUT);
pinMode(41, OUTPUT);
pinMode(42, OUTPUT);
pinMode(43, OUTPUT);
pinMode(44, OUTPUT);
pinMode(45, OUTPUT);
pinMode(46, OUTPUT);
pinMode(47, OUTPUT);
pinMode(48, OUTPUT);
pinMode(49, OUTPUT);
pinMode(50, OUTPUT);
pinMode(51, OUTPUT);

}

void loop() {

digitalWrite(23, LOW);
digitalWrite(22, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(22, HIGH);
digitalWrite(24, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(22, LOW);
digitalWrite(24, HIGH);
digitalWrite(26, HIGH);
delay(100); // Wait for 100 millisecond(s)

digitalWrite(24, LOW);
digitalWrite(26, HIGH);
digitalWrite(28, HIGH);
delay(100); // Wait for 100 millisecond(s)

digitalWrite(26, LOW);
digitalWrite(28, HIGH);
digitalWrite(30, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(28, LOW);
digitalWrite(30, HIGH);
digitalWrite(32, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(30, LOW);
digitalWrite(32, HIGH);
digitalWrite(34, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(32, LOW);
digitalWrite(34, HIGH);
digitalWrite(36, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(34, LOW);
digitalWrite(36, HIGH);
digitalWrite(38, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(36, LOW);
digitalWrite(38, HIGH);
digitalWrite(40, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(38, LOW);
digitalWrite(40, HIGH);
digitalWrite(42, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(40, LOW);
digitalWrite(42, HIGH);
digitalWrite(44, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(42, LOW);
digitalWrite(44, HIGH);
digitalWrite(46, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(44, LOW);
digitalWrite(46, HIGH);
digitalWrite(48, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(46, LOW);
digitalWrite(48, HIGH);
digitalWrite(50, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(48, LOW);
digitalWrite(50, HIGH);
digitalWrite(51, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(50, LOW);
digitalWrite(51, HIGH);
digitalWrite(49, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(51, LOW);
digitalWrite(49, HIGH);
digitalWrite(47, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(49, LOW);
digitalWrite(47, HIGH);
digitalWrite(45, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(47, LOW);
digitalWrite(45, HIGH);
digitalWrite(43, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(45, LOW);
digitalWrite(43, HIGH);
digitalWrite(41, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(43, LOW);
digitalWrite(41, HIGH);
digitalWrite(39, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(41, LOW);
digitalWrite(39, HIGH);
digitalWrite(37, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(39, LOW);
digitalWrite(37, HIGH);
digitalWrite(35, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(37, LOW);
digitalWrite(35, HIGH);
digitalWrite(33, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(35, LOW);
digitalWrite(33, HIGH);
digitalWrite(31, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(33, LOW);
digitalWrite(31, HIGH);
digitalWrite(29, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(31, LOW);
digitalWrite(29, HIGH);
digitalWrite(27, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(29, LOW);
digitalWrite(27, HIGH);
digitalWrite(25, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(27, LOW);
digitalWrite(25, HIGH);
digitalWrite(23, HIGH);
delay(100); // Wait for 1000 millisecond(s)

digitalWrite(25, LOW);
digitalWrite(23, HIGH);
delay(100); // Wait for 1000 millisecond(s)

}