block
nomatch
block
block
block
--------
nomatch
nomatch
nomatch
nomatch
nomatch
--------
nomatch
nomatch
nomatch
nomatch
nomatch
--------
pass
nomatch
nomatch
pass
pass
--------
block
nomatch
nomatch
nomatch
block
--------
nomatch
nomatch
nomatch
nomatch
nomatch
--------
nomatch
block
block
block
block
--------
nomatch
nomatch
nomatch
nomatch
nomatch
--------