function h1( str ) {

    println( "# " str );
}

function h2( str ) {

    println( "## " str );
}

function h3( str ) {

    println( "### " str );
}

function li( str ) {

    println( "* " str );
}

function link( url, str ) {
    
    println( "=> " url " " str );
}

function pre_open() {
    println( "```" );
}

function pre_close() {
    println( "```" );
}

function pre( str ) {

    pre_open();
    println( str );
    pre_close();
}

function text( str ) {

    println( str );
}