import java.io.IOException;
import java.util.InputMismatchException;

public class Main {
	char[] c;
	int id;

	long expression() {
		long res = term();
		while (c[id] == '+' || c[id] == '-') {
			if (c[id] == '+') {
				id++;
				res += term();
			} else {
				id++;
				res -= term();
			}
		}
		return res;
	}

	long term() {
		long res = fact();
		while (c[id] == '*' || c[id] == '/') {
			if (c[id] == '*') {
				id++;
				res *= fact();
			} else {
				id++;
				res /= fact();
			}
		}
		return res;
	}

	long fact() {
		long res = 0;
		if (c[id] == '(') {
			id++;
			res = expression();
			id++;
		} else if (c[id] == '+') {
			id++;
			res = fact();
		} else if (c[id] == '-') {
			id++;
			res = -fact();
		} else {
			res = number();
		}
		return res;
	}

	long number() {
		long res = 0;
		while ('0' <= c[id] && c[id] <= '9') {
			res *= 10;
			res += c[id] - '0';
			id++;
		}
		return res;
	}

	void run() {
		MyScanner sc = new MyScanner();

		StringBuilder s = new StringBuilder(sc.next());

		int n = s.length();
		long max = Long.MIN_VALUE;
		for (int i = 0; i < n; i++) {
			c = (s.toString() + "=").toCharArray();
			if (c[0] < '0' || '9' < c[0]) {
				s = new StringBuilder("").append(s.charAt(s.length() - 1)).append(s.substring(0, s.length() - 1));
				continue;
			}
			if (c[c.length - 2] < '0' || '9' < c[c.length - 2]) {
				s = new StringBuilder("").append(s.charAt(s.length() - 1)).append(s.substring(0, s.length() - 1));
				continue;
			}
			id = 0;
			long tmp = expression();
			max = Math.max(max, tmp);

			s = new StringBuilder("").append(s.charAt(s.length() - 1)).append(s.substring(0, s.length() - 1));
		}

		System.out.println(max);
	}

	public static void main(String[] args) {
		new Main().run();
	}

	public void mapDebug(int[][] a) {
		System.out.println("--------map display---------");
		for (int i = 0; i < a.length; i++) {
			for (int j = 0; j < a[i].length; j++) {
				System.out.printf("%3d ", a[i][j]);
			}
			System.out.println();
		}
		System.out.println("----------------------------" + '\n');
	}

	class MyScanner {
		int read() {
			try {
				return System.in.read();
			} catch (IOException e) {
				throw new InputMismatchException();
			}
		}

		boolean isSpaceChar(int c) {
			return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
		}

		boolean isEndline(int c) {
			return c == '\n' || c == '\r' || c == -1;
		}

		int nextInt() {
			return Integer.parseInt(next());
		}

		int[] nextIntArray(int n) {
			int[] array = new int[n];
			for (int i = 0; i < n; i++)
				array[i] = nextInt();
			return array;
		}

		long nextLong() {
			return Long.parseLong(next());
		}

		long[] nextLongArray(int n) {
			long[] array = new long[n];
			for (int i = 0; i < n; i++)
				array[i] = nextLong();
			return array;
		}

		double nextDouble() {
			return Double.parseDouble(next());
		}

		double[] nextDoubleArray(int n) {
			double[] array = new double[n];
			for (int i = 0; i < n; i++)
				array[i] = nextDouble();
			return array;
		}

		String next() {
			int c = read();
			while (isSpaceChar(c))
				c = read();
			StringBuilder res = new StringBuilder();
			do {
				res.appendCodePoint(c);
				c = read();
			} while (!isSpaceChar(c));
			return res.toString();
		}

		String[] nextStringArray(int n) {
			String[] array = new String[n];
			for (int i = 0; i < n; i++)
				array[i] = next();

			return array;
		}

		String nextLine() {
			int c = read();
			while (isEndline(c))
				c = read();
			StringBuilder res = new StringBuilder();
			do {
				res.appendCodePoint(c);
				c = read();
			} while (!isEndline(c));
			return res.toString();
		}
	}
}