with javascript_semantics
function mnmnn(sequence counts, integer limit=2000)
    if gcd(counts)>1 then return "No maximum" end if
    sequence nuggets = repeat(false,limit+1)
    integer {i,j,k} = counts
    for a=0 to limit by i do
        for b=a to limit by j do
            for c=b to limit by k do
                nuggets[c+1] = true
            end for
        end for
    end for
    return sprintf("%d",rfind(false,nuggets)-1)
end function
printf(1,"Maximum non-McNuggets number is %s\n", mnmnn({6,9,20},100))