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\begin{verbatim}
#include<iostream.h>
#include<LINK/basic/RedBlackTree.h>

main()
{
        RedBlackTree<int, char> rbtree;
        ContainerNode *cn;

        rbtree.insert(1, 'b');
        rbtree.insert(-1, 'a');
        rbtree.insert(2, 'c');

        cout << rbtree << endl;

        rbtree.preorderWalk(cout);
        rbtree.inorderWalk(cout);
        rbtree.postorderWalk(cout);
}
\end{verbatim}

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\begin{verbatim} 
<(-1,a)(1,b)(2,c)>

<(1,b)(-1,a)(2,c)>
<(-1,a)(1,b)(2,c)>
<(-1,a)(2,c)(1,b)>
\end{verbatim}

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