print qq(<h1 align="right">$string</h1>\n);
print qq{<h1 align="right">$string</h1>\n};
print qq#<h1 align="right">$string</h1>\n#;
print qq!<h1 align="right">$string</h1>\n!;

# have to escape the delimiter:
print qq/<h1 align="right">$string<\/h1>\n/;