import java.util.regex.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
public static void main
(String[] args
) {
Pattern p = Pattern.compile("(\\w)*");
Matcher m = p.matcher(s);
while (m.find()) {
System.
out.
println(s.
substring(m.
start(), m.
end())); }
}
}
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