4
YYRRRRRRRRRRRRRRRRRRRRRYYYGGGGGGGGRRRRRRRYYYYYYYYYBBBBBBBGGGGGRRRRRRGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGRRRRRRRGGBBBBGGGGGGGGGGGGGGGGGBBRRRYYYYYYYYYYYRRRRBBBBBBBBGGGGGRRY
GGGRRRRRGRRRRRRRRGGGGGGRRRRRRRRBBBBBBRRRRRRRRRRRRRRRRYYYGGRRRRRRRRBBBBBBBBBBBBBBBBBBBRRRRRRRRRRRRRRRRRRRGGGGGGYYYYYYYYYYYYYYYYYYYYYY
GGGGGGGGYYYYYYYYYYYYYYYYYYYYYYYYBBBBBBBBBBBBBBBBBBBBBBGGGGGGGGGGGGGGGGGGGGGGGGGGGGGBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
BBBBBBBBBBBBGGGGGGGGBBBBBBBBBBRGGGGGGGGGYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYBBYYYYYYYYYYYYYYYY