WGWGWGWGWGWGWG
WGXR        WG
WG  WGWGWG  WG
WG          WG
WGZG        WG
WG  BBBG    WG
WG    BR  ZBWG
WG          WG
WG  WGWGWG  WG
WG          WG
WGWGWGWGWGWGWG