OMSRI7AHKL3D2KFQ7F5IDANQIIGG3MYULPHGICXOA7JVTIHEYGHQC
LZN527GR3AULRHWIBA537RR4WSCNNYY4XSEZ6VFF7TKGYSUSBOCAC
7YUGK5Q64KG5O7GJGTUBRRLHAHBCJ5YOE23YUPT6UBKUSB67CYAQC
YZDUBIAT6TBWILPMUACASUTVW3CKHPNZ6LJQGJGEE7RLXWXCZOGQC
K2CS6TCX2NDVL2ASEHGP4J4K4IJ6FP3ANNKTSIWVG43HPYSBX6ZQC
ASSERT(!grid_is_solid(grd(pos()))
ASSERT((!grid_is_solid(grd(pos())) || avoid_self)