TLang

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Tuenti Programming Contest
 * Challenge 2: TLang
 * @author alefhidalgo [at] gmail [dot] com
 */
public class TLang {
    /* ADD OPERATION TOKEN */
    private String OP_ADD = "^=";
    /* MULTIPLICATION OPERATION TOKEN */
    private String OP_MULT = "^#";
    /* SUBTRACTION OPERATION TOKEN */
    private String OP_SUB = "^@";

    /**
     * Solve expression
     * @param expression
     * @return
     */
    public String solveExpression(String expression) {
        /* Pattern to recognise simple expressions */
        Pattern p = Pattern.compile("[[\\^#][\\^=][\\^@]]+(\\s+[-]?\\d+)?\\s+[-]?\\d+\\$+");
        Matcher m = p.matcher(expression);
        //recursive until expression will be fully simplified
        if (m.find()) {
            String simpleExpression = m.group();
            String simpleExpressionSolved = solveSimpleExpression(simpleExpression);
            String simplyfiedExpression = expression.replace(simpleExpression, simpleExpressionSolved);
            return solveExpression(simplyfiedExpression);
        } else {
            //at this point the expression is solved
            return expression;
        }
    }

    /**
     * Solve Simple Expression
     * @param simpleExpression
     *            ^# xxx yyy$..$ or ^@ yyy$..$
     * @return
     */
    private String solveSimpleExpression(String simpleExpression) {
        BigDecimal number1 = null;
        BigDecimal number2 = null;
        BigDecimal result = null;
        String mod = "";
        Scanner exprScn = new Scanner(simpleExpression);
        List<String> arrExpr = new ArrayList<String>();
        while (exprScn.hasNext()) {
            arrExpr.add(exprScn.next());
        }
        //Type1 ^@ yyy$..$
        if (arrExpr.size() == 2) {
            mod = arrExpr.get(1).replaceFirst("[-]?\\d+\\$", "");
            number1 = new BigDecimal(arrExpr.get(1).replaceAll("\\$", ""));
            if (arrExpr.get(0).equals(OP_SUB)) {
                result = number1.negate();
            }else {
                result = number1;
            }
        //Type2 ^# xxx yyy$..$
        } else {
            number1 = new BigDecimal(arrExpr.get(1));
            number2 = new BigDecimal(arrExpr.get(2).replaceAll("\\$", ""));
            mod = arrExpr.get(2).replaceFirst("[-]?\\d+\\$", "");
            if (arrExpr.get(0).equals(OP_ADD)) {
                result = number1.add(number2);
            } else if (arrExpr.get(0).equals(OP_MULT)) {
                result = number1.multiply(number2);
            } else if (arrExpr.get(0).equals(OP_SUB)) {
                result = number1.subtract(number2);
            }
        }
        return result.toPlainString() + mod;
    }

    public static void main(String args[]) {
        TLang tLang = new TLang();
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) {
            System.out.println(tLang.solveExpression(in.nextLine()));
        }
    }
}