ocr: m_Parent Tree [Add] m_ChildLeft m_ ChildRight m_Parent m_Parent Tree Multiply] Tree (Value 5] m ChildLeft m ChildRight m ChildLeft m_Parent m_Parent m_ChildRight Tree IValue 4] Tree IValue 6] m_ChildLeft M_ChildLeft m_ChildRight m_ChildRight Figure 1: An example binary tree for tbeformula 4X6+5.