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Graphics Interchange Format  |  1998-02-10  |  48KB  |  345x549  |  4-bit (15 colors)
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OCR: Figure 3; Building an Expression Tree from an Expression String Expression String Expression Stack Operator Stack 1+2*3/(4-2) +2*3/(4-2) 2*3/(4-2) 1 *3/(4-2) 12 + 3/(4-2) 12 + /4-2' 123 +* (4-2) 123 +/ 4-2) +/( -2) 1234 2) 1234 +/ 12342 +K- 12342 +1 12342 42