79413307

Date: 2025-02-04 23:49:07
Score: 1.5
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Alternatively with REDUCE and LAMBDA.

=DROP(REDUCE("",B2:B4,LAMBDA(u,v,
VSTACK(u,VSTACK(v,FILTER(A7:A11,B7:B11=v),
FILTER(A14:A18,ISNUMBER(XMATCH(B14:B18,FILTER(A7:A11,B7:B11=v)))))))),1)

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Posted by: user22566114