program main
    implicit none
    
    integer :: l, n
    integer, allocatable ::    w(:)
    logical, allocatable :: mask(:)
    
    integer :: total_width = 0
    
    integer :: min_index
    
    integer :: i
    
    read *, l
    read *, n
    
    allocate    (w(n))
    allocate (mask(n))
    
    read *, w
    
    mask = .true.
    
    do i = 1, n
        min_index = minloc(w, 1, mask)
        total_width = total_width + w(min_index)
        mask(min_index) = .false.
        
        if (total_width > l) exit
    end do
    
    print '(I0)', i-1
end program main