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[87,null,"Count unique distinct values"]
[27]
[84,null,"in red cells:",{"$f":"CountC(A1:A20,C3)","v":6}]
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[24,null,"in green cells:",{"$f":"CountC(A1:A20,C5)","v":4}]
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[75]
[41]
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[23]
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[25]
[34]
[48]