!> This file was processed by `fypp`.
!> Today's fortune: "Happy TLE", really OK?
!> ランダムウォーク猿「'bit全探索' で はっぴー.」
!> ギャンブラー猿「AtCoder は運だ.」
program f902894
  use, intrinsic :: iso_fortran_env
  !> auto use module
  implicit none
  integer(int32) :: n
  character, allocatable :: cs(:)
  integer(int32) :: i
  read(input_unit, *) n
  allocate(cs(0:n))
  read(input_unit, '(*(a1))') cs(1:n)
  cs(0) = "|"
  write(output_unit, '(i0)') count(cs(0:n-1) /= cs(1:n))
end program f902894