program yukicoder_2426
  use, intrinsic :: iso_fortran_env
  implicit none
  integer(int32), parameter :: max_len = 10000
  integer(int64) :: n, m
  character(len=:), allocatable :: operations
  integer(int32) :: k
  read(input_unit, *) n
  allocate(character(len=max_len) :: operations)
  operations(1:max_len) = ""
  m = n
  do k = 1, max_len
     if (m == 1) exit
     if (iand(m, b'1') == 0) then
        m = m / 2
        operations(k:k) = "/"
     else !> b is odd.
        if (iand((3 * m + 1) / 2, b'1') == 0) then
           m = 3 * m + 1
           operations(k:k) = "+"
        else !> iand((3 * m - 1) / 2, b'1') == 0
           m = 3 * m - 1
           operations(k:k) = "-"
        end if
     end if
  end do
  write(output_unit, '(i0)') len_trim(operations)
  write(output_unit, '(a)') trim(operations)
end program yukicoder_2426