import java.util.*;
import java.io.*;

public class UseParser {
	public static void main(String[] args) {
		try {
			File inputFile = new File("calc.tiny");
			Calc2Parser parser = new Calc2Parser(new Calc2Scanner(
					new FileReader(inputFile)));
			Program pm = (Program) parser.parse().value;
			System.out.println(pm.toString());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}