#import<FastLED.h>
CRGB l[8];int a,j;int main(){init();FastLED.addLeds<WS2812,0,GRB>(l,7);for(;;)l["717602543"[j+1+j%3]-48]=HeatColor(qsub8(inoise8(a+=3),j*17)),LEDS.show(),j=++j%9;}
ATTINY8520PU