function sc_append() {
    if (arguments.length === 0)
	return null;
    var res = arguments[arguments.length - 1];
    for (var i = arguments.length - 2; i >= 0; i--)
	res = sc_dualAppend(arguments[i], res);
    return res;
}
function sc_append() {
    if (arguments.length === 0)
	return null;
    var res = arguments[arguments.length - 1];
    for (var i = arguments.length - 2; i >= 0; i--)
	res = sc_dualAppend(arguments[i], res);
    return res;
}
function sc_append ( ) { if ( arguments . length === 0 ) return null ; var res = arguments [ arguments . length - 1 ] ; for ( var i = arguments . length - 2 ; i >= 0 ; i -- ) res = sc_dualAppend ( arguments [ i ] , res ) ; return res ; }
* META ((export #t))
* META (( export #t ))