do while ( mod(3*3600,nd).ne.0 )
do while (.not.found .and. nd .le. ndatebc)
DO while ((L.le.LS).and.(string(L:L) .eq. ' '))
DO while ((L.gt.0).and.(string(L:L) .eq. ' '))
do while ( .true. )
do while (ndays_left .ge. days_in_year)
do while (yG(i,j,bi,bj) .lt. y_in(js))
do while (yG(i,j,bi,bj) .ge. y_in(js+1))
do while (icnt .gt. 0)