#include <Adafruit_NeoPixel.h>
int PIN = 12;
int N_LEDS = 50;
Adafruit_NeoPixel ring = Adafruit_NeoPixel(N_LEDS, PIN);

void setup() {
  // put your setup code here, to run once:
  ring.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
  for(int i = 0; i < N_LEDS; i++){
    ring.setPixelColor(i, ring.Color(0, 255, 255));
    ring.show();
    delay(100);
    if(i < 10){
      ring.setPixelColor(i, ring.Color(221, 255, 0));
      ring.show();
      delay(100);
    }
    else if(i >= 10 && i < 20) {
      ring.setPixelColor(i, ring.Color(255, 213, 0));
      ring.show();
      delay(100);
    }
    else if(i >= 20 && i < 30) {
      ring.setPixelColor(i, ring.Color(255, 132, 0));
      ring.show();
      delay(100);
    }
    else if(i >= 30 && i < 40) {
      ring.setPixelColor(i, ring.Color(255, 47, 0));
      ring.show();
      delay(100);
    }
    else {
      ring.setPixelColor(i, ring.Color(255, 255, 255));
      ring.show();
      delay(100);
    }
  }
}