<html><div style='background-color:'><DIV> <P><BR>a string is a list of Char which can be '1', '0', '/n' and spaces ' '. ["1 0 1 0 0 1 /n"]<BR></P></DIV></div><br clear=all><hr>Get <a href="http://g.msn.com/8HMYENSG/2749??PS=">free gift vouchers every week</a> with MSN Premium Vouchers</html>