program main
    use,intrinsic :: iso_fortran_env
    implicit none
    integer(int32):: n,n2,i,s,ns,teika
    integer(int32),parameter:: inf = 100100100, md=1000
    integer(int32), allocatable:: m(:),dp(:)

    read*, n
    n2 = lshift(1,n)-1
    allocate(m(n))
    allocate(dp(0:n2),source=inf)
    read*, (m(i),i=1,n)
    dp(0)=0
    do s=0,n2
        teika=sum([(merge(m(i),0,btest(s,i-1)),i=1,n)])
        teika=mod(teika,md)
        do i=1,n
            if (btest(s,i-1)) cycle
            ns = ibset(s,i-1)
            dp(ns) = min(dp(ns), dp(s)+max(0,m(i)-teika))
        end do
    end do
    print'(i0)', dp(n2)
end program main