Embedding MAX/MIN in SUMPRODUCT Formula

Formula in O17 can be replaced by this formula so that formula in P17 can be avoided. No dragging of formula.
Single entry in O17 is sufficient.

Formula:

=LET(Clma,UNIQUE(A17#),clmb,TEXTSPLIT(TEXTJOIN(";",FALSE,BYROW(Clma,LAMBDA(Ro,IF(Ro="","",TEXTJOIN("_",FALSE,BYCOL($B$17:$M$20,LAMBDA(x,SUMIF($A$17:$A$20,Ro,x)))))))),"_",";",FALSE),HSTACK(Clma,clmb))