4
YYYGGGGGGGGGGGGBBBBBBBBBBBBBBBBBBBGGGGGGBBBYYYYYYYYYYYRRRRRRRGGGYYYYYYYYYYYYYYYRRRRRRRGGGGGGGYYYYYYBBBBBBBBBBBBYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
GGGGGGGRRRRRRRRRBBBBBBBBRRRRRYYYYYYYYYYYYYYYYYGGGGYRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRBBBBBBGGRYYRRRRRRRRRRRRRRRRYYYBYYYYYYYYYYYYY
YYYYYYGYGGGYYYYYGGGGBBGGGRGGYYYYYYYYYYYYYYYYBBYYRRYYYYYYYYYBGGGYYYYYYYYBGYGGYYYYYYRYYYYGGRRYGGGGRRRRRBBB
GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBYYYYYYYYYYYYYYYYYYYYYRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR