WH1, C1,  6
WH1, C2,  2
WH1, C3,  6
WH1, C4,  7

WH2, C1,  4
WH2, C2,  9
WH2, C3,  5
WH2, C4,  3

WH3, C1,  8
WH3, C2,  8
WH3, C3,  1
WH3, C4,  5
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