import java.util.*;
public class MultipleGroups implements NumberGroup
{
    private List<NumberGroup> groupList; 
    
    public MultipleGroups()
    {
        groupList = new ArrayList<NumberGroup>();
    }

    public void add(NumberGroup g)
    {
        groupList.add(g);
    }

    public boolean contains(int num)
    {
        for(NumberGroup n : groupList)
            if(n.contains(num))
                return true;

        return false;
    }

    public String toString()
    {
        return ""+groupList;
    }
}