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import java.util.LinkedHashSet;
import java.util.Set;
public class Main {
public static Set fill(Set a, int size) {
for (int i = 0; i < size; i++)
a.add(new Integer(i));
return a;
}
public static void test(Set a) {
fill(a, 10);
System.out.println(a);
}
public static void main(String[] args) {
test(new LinkedHashSet());
}
}
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