--[[
AAAABBBBAAAABBBBAAAA
AAAABBBBAAAABBBBAAAA
AAAABBBBAAAABBBBAAAA
AAAABBBBAAAABBBBAAAA
CCCCDDDDCCCCDDDDCCCC
CCCCDDDDCCCCDDDDCCCC
EEEEEEEEEEEEEEEEEEEE
CCCCDDDDCCCCDDDDCCCC
AAAAEEEEEEEABBBBAAAA
AAAAEBBBAAEABBBBAAAA
AAAAEBBBAAEABBBBAAAA
AAAAEBBBAAEABBBBAAAA
CCCCEDDDCCECDDDDCCCC
CCCCEDDDCCECDDDDCCCC
CCCCEDDDCCEEEEEECCCC
CCCCEDDDCCCCDDDDCCCC
AAAABBBBAAAABBBBAAAA
AAAABBBBAAAABBBBAAAA
AAAABBBBAAAABBBBAAAA
AAAABBBBAAAABBBBAAAA
00000000000000000000
00000121211021000000
00000000122211100000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
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00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
00000000000000000000
]]
tableau.t = 30000