character*3,parameter::c='…'
  character*300::S
  integer::i,total=0,prev=0,maxlen
  read *,S

  do i=1, LEN_TRIM(S)
     if(S(i:i+2).eq.c) then
        if(prev+3.eq.i.or.prev.eq.0) then
           total=total+1
           prev = i
           maxlen=MAX(maxlen, total)
        end if
     end if
  end do
  print '(i0)', maxlen
end program