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public class Pair<T>
{
   public Pair() ...{ first = null; second = null; }
   public Pair(T first, T second) ...{ this.first = first;  this.second = second; }
   public T getFirst() ...{ return first; }
   public T getSecond() ...{ return second; }
   public void setFirst(T newValue) ...{ first = newValue; }
   public void setSecond(T newValue) ...{ second = newValue; }
   private T first;
   private T second;

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public class Pair
{
   public Pair(Object first, Object sec


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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Matcher;
import java.util.regex.Pattern;
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