为什么我看不懂高手的公式?那些“奇怪”的符号到底什么意思?

=INDEX($A:$B,RIGHT(SMALL($B$2:$B$5+ROW($B$2:$B$5)%%,ROW(A1)),4),COLUMN(A1))

=LOOKUP("座",A2:A8,ROW(A2:A8))
=MATCH(1=1,MID(A2,ROW(1:99),1)>="吖",)

=VLOOKUP(D2,A:B,2,)&""
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=INDEX($A:$B,RIGHT(SMALL($B$2:$B$5+ROW($B$2:$B$5)%%,ROW(A1)),4),COLUMN(A1))

=LOOKUP("座",A2:A8,ROW(A2:A8))
=MATCH(1=1,MID(A2,ROW(1:99),1)>="吖",)

=VLOOKUP(D2,A:B,2,)&""