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public class Test implements DSAComparable{
    private Integer local;

    public Test(int local) {
        this.local = local;
    }

    @Override
    public boolean less(Object other) {
        return this.local < (Integer)other ? true : false;
    }

    @Override
    public Integer getLeastElement() {
        return this.local;
    }

    @Override
    public Integer getGreatestElement() {
        return null;
    }
}