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import java.util.*;
public class OddOneOut {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
List<String> values = Arrays.stream(scanner.nextLine().split(",")).toList();
int count = 0;
List<String> newList = new ArrayList<>(values.size());
for (String str : values) {
String temp = new String(str);
final char[] chars = str.toCharArray();
Arrays.sort(chars);
if (!temp.equals(new String(chars))) {
count++;
} else {
newList.add(str);
}
}
System.out.println(count);
System.out.println(newList);
}
}
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