Stair-climbing puzzle: Difference between revisions
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=={{header|Perl 6}}==
<lang perl6>sub step_up { step_up until step; }</lang>
=={{header|Phix}}==
<lang Phix>procedure step_up()
while not step() do step_up() end while
end procedure</lang>
=={{header|PicoLisp}}==
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