:l T2215.hs
:break 5
:break 6
:show breaks
:main  5 21 7 13 8
:abandon
:disable 0
:show breaks
:main  5 21 7 13 8
:abandon
:disable 1
:disable 1
:show breaks
:main  5 21 7 13 8
:enable 0
:enable 0
:show breaks
:main  5 21 7 13 8
:disable 0
:continue
:enable *
:show breaks
:disable *
:show breaks
:enable 0 1
:show breaks