#include <Adafruit_NeoPixel.h>

int pin = 12;
int lednumber = 40;
Adafruit_NeoPixel ring = Adafruit_NeoPixel(lednumber,pin);

void setup() {
  ring.begin();
}


void loop() {
  for (int i=0; i < lednumber; i++){
    int remainder = i%3;
    if (remainder == 1){
      ring.setPixelColor(i, ring.Color(116, 183, 237));
      ring.show();
      delay(100);
    }
    else if (remainder == 2){
      ring.setPixelColor(i, ring.Color(252, 68, 176));
      ring.show();
      delay(100);
    }
    else{
      ring.setPixelColor(i, ring.Color(189, 116, 237));
      ring.show();
      delay(100);
    }
  }
}