多格多數字 取不重複 (15116)

B16{=IFERROR(IF(COLUMN(A1)=1,"",",")&SMALL(IF(MMULT(COLUMN(A:H)^0,1-ISERR(FIND(","&COLUMN($A:$CU)&",",","&$B3:$B10&","))),COLUMN($A:$CU)),COLUMN(A1))&C16,"")