program main
  implicit none
  character*300::S
  character*300::SR
  integer::i,len,utf8len
  integer*1::code
  character::c
  S=""
  SR=""
  read *, S
  len = LEN_TRIM(S)
  i = 1
  do
     if(i.gt.len) exit
     utf8len = get_utf8_len(S(i:i))
     SR(len-i-utf8len+2:len-i+1) = S(i:i+utf8len-1)
     i = i + utf8len
  end do
  print '(a)', TRIM(SR)

  return
contains
  logical function is_ascii(c) result(l)
    character::c
    l = .not.BTEST(ICHAR(c,1),7)
  end function is_ascii
  integer function get_utf8_len(c) result(len)
    character::c
    integer*1::ic
    ic = ICHAR(c,1)
    if(.not.BTEST(ic,7)) then
       len = 1
    else
       len = LEADZ(NOT(ic))
    end if
  end function get_utf8_len
end program main