Template:SubstN
{{subst:#ifexpr:{{{1}}}>0 |{{subst:subst1}}substN{{subst:pipe1}}{{subst:#expr:{{{1}}}-1}}{{subst:rightbraces1}} |{{subst:subst1}} }}
{{subst:#ifexpr:{{{1}}}>0 |{{subst:subst1}}substN{{subst:pipe1}}{{subst:#expr:{{{1}}}-1}}{{subst:rightbraces1}} |{{subst:subst1}} }}