1.0 200.0 200.0
 0.2 0.1 0.6
 1.9 3.0 4.1
 51.8 51.8 7.1
 113.9 125.2 88.8
 1.9 4.8 3.9
 2.2 148.1 138.0
 1.0 200.0 1.0
 1.7 4.5 4.2
 0.2 0.6 0.3
 200.0 200.0 0.1
 3.9 0.2 3.8
 7.0 131.1 7.4
 4.6 4.4 2.3
 2.0 1.1 2.4
 2.4 3.8 2.7
 0.1 0.5 0.2
 1.8 0.4 2.7
 1.1 1.1 1.1
 3.7 2.2 4.8
 3.9 2.1 4.5
 1.0 1.0 200.0
 104.6 184.4 82.3
 149.4 15.5 82.0
 0.5 0.5 0.6
 1.1 1.5 1.0
 0.3 0.4 0.4
 0.3 0.5 0.6
 0.2 0.2 0.5
 1.0 1.0 1.0
 0.2 0.7 0.6
 144.0 70.4 148.1
 25.9 77.0 144.8
 0.9 1.0 0.1
 0.5 0.3 0.2
 2.0 1.0 4.0
 4.0 2.0 1.0
 1.0 2.0 4.0
 0.5 0.5 0.1
 0.6 0.2 0.5
 185.9 9.6 163.4
 0.8 0.3 0.6
 200.0 1.0 200.0
 1.1 3.1 4.9
 3.7 3.7 4.1
 0.1 0.2 0.6
 1.5 1.3 0.1
 4.6 2.1 1.6
 0.1 200.0 0.1
 1.0 0.3 1.1
 0.3 0.3 0.5
 0.1 0.1 0.4
 55.5 159.4 140.3
 4.4 3.7 3.4
 200.0 1.0 1.0
 0.1 1.4 0.3
 1.4 0.5 0.8
 1.1 1.5 0.4
 51.5 156.3 145.1
 0.1 0.3 0.5
 153.9 122.1 89.5
 1.8 1.8 2.1
 0.5 0.1 0.9
 0.6 0.6 1.1
 4.6 3.0 3.4
 0.1 0.4 0.3
 0.6 0.3 0.2
 196.9 3.0 4.1
 3.0 3.0 3.1
 4.4 0.5 2.0
 4.5 1.3 4.8
 64.6 117.1 81.6
 117.4 68.8 137.7
 141.1 108.1 14.9
 81.7 171.9 4.4
 0.2 0.3 0.1
 156.9 154.8 73.9
 1.5 1.4 1.1
 0.4 1.1 0.9
 0.4 1.1 0.8
 0.1 200.0 200.0
 0.5 0.3 0.1
 1.0 2.0 1.0
 1.4 1.1 1.0
 0.7 1.4 0.4
 28.9 39.3 148.4
 1.7 1.9 4.4
 0.5 0.8 0.3
 200.0 0.1 0.1
 0.5 0.2 0.2
 0.6 0.4 0.3
 0.9 1.2 0.2
 4.3 2.4 4.9
 0.9 2.0 4.8
 189.4 63.7 63.4
 38.7 142.2 89.8
 0.3 0.4 0.1
 1.9 1.1 4.8
 0.4 0.1 0.6
 4.2 1.1 1.2
 1.5 1.7 2.5
 184.1 118.5 129.5
 200.0 200.0 200.0
 0.5 0.4 0.5
 1.2 0.7 1.3
 3.9 4.3 3.4
 193.9 40.7 19.7
 0.5 0.2 0.3
 36.9 51.1 4.8
 0.2 0.1 0.2
 0.2 0.6 0.4
 0.1 0.1 200.0
 0.9 4.6 3.4
 2.0 4.0 1.0
 0.2 0.3 0.2
 0.4 1.0 1.5
 1.4 1.2 1.4
 1.2 0.6 0.5
 2.0 2.1 2.2
 0.1 0.2 0.3
 0.8 0.4 1.4
 1.4 0.3 1.4
 4.0 1.0 2.0
 0.1 0.5 0.4
 0.4 0.2 0.3
 4.0 0.4 3.1
 200.0 0.1 200.0
 1.0 4.0 2.0
 0.3 0.4 1.2
 94.5 56.3 59.8
 1.4 0.8 0.9
 200.0 200.0 1.0
 1.4 0.8 0.2
 3.9 0.7 4.7
 144.6 103.0 193.4
 0.5 0.1 0.3
 0.1 0.4 0.2
 0.1 0.1 0.1
 1.2 0.5 1.2
 198.7 23.7 89.1
 139.3 87.4 129.9
 4.1 3.5 4.5
 2.2 3.1 3.0
 91.8 170.4 7.7
 41.7 104.5 74.2

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

public class CF341D {

    BufferedReader br;
    PrintWriter out;
    StringTokenizer st;
    boolean eof;
    final long MOD = 1000L * 1000L * 1000L + 7;
    void solve() throws IOException {
        double x = nextDouble();
        double y = nextDouble();
        double z = nextDouble();

        String[] arr = {"x^y^z", "x^z^y", "(x^y)^z", "y^x^z", "y^z^x", "(y^x)^z", "z^x^y", "z^y^x", "(z^x)^y"};

        if(x > 1 || y > 1 || z > 1) {
            double[] values = new double[9];
            if(x <= 1) {
                values[0] = Double.NEGATIVE_INFINITY;
                values[1] = Double.NEGATIVE_INFINITY;
                values[2] = Double.NEGATIVE_INFINITY;
            }
            else {
                values[0] = z * Math.log(y) + Math.log(Math.log(x));
                values[1] = y * Math.log(z) + Math.log(Math.log(x));
                values[2] = Math.log(z) + Math.log(y) + Math.log(Math.log(x));
            }

            if(y <= 1) {
                values[3] = Double.NEGATIVE_INFINITY;
                values[4] = Double.NEGATIVE_INFINITY;
                values[5] = Double.NEGATIVE_INFINITY;
            }
            else {
                values[3] = z * Math.log(x) + Math.log(Math.log(y));
                values[4] = x * Math.log(z) + Math.log(Math.log(y));
                values[5] = Math.log(z) + Math.log(x) + Math.log(Math.log(y));
            }

            if(z <= 1) {
                values[6] = Double.NEGATIVE_INFINITY;
                values[7] = Double.NEGATIVE_INFINITY;
                values[8] = Double.NEGATIVE_INFINITY;
            }
            else {
                values[6] = y * Math.log(x) + Math.log(Math.log(z));
                values[7] = x * Math.log(y) + Math.log(Math.log(z));
                values[8] = Math.log(x) + Math.log(y) + Math.log(Math.log(z));
            }
            out(arr[findMax(values)]);

        }
        else if(x == 1 || y == 1 || z == 1) {
            if(x == 1) {
                out(arr[0]);
            }
            else if(y == 1) {
                out(arr[3]);
            }
            else {
                out(arr[6]);
            }
        }
        else {
            double[] values = new double[9];
            values[0] = z * Math.log(y) + Math.log(Math.log(1 / x));
            values[1] = y * Math.log(z) + Math.log(Math.log(1 / x));
            values[2] = Math.log(z) + Math.log(y) + Math.log(Math.log(1 / x));

            values[3] = z * Math.log(x) + Math.log(Math.log(1 / y));
            values[4] = x * Math.log(z) + Math.log(Math.log(1 / y));
            values[5] = Math.log(z) + Math.log(x) + Math.log(Math.log(1 / y));

            values[6] = y * Math.log(x) + Math.log(Math.log(1 / z));
            values[7] = x * Math.log(y) + Math.log(Math.log(1 / z));
            values[8] = Math.log(x) + Math.log(y) + Math.log(Math.log(1 / z));
            out(arr[findMin(values)]);
        }
    }
    public int findMax(double[] arr) {
        int res = 0;
        double tmp = arr[0];
        for(int i = 1; i < arr.length; i++) {
            if(tmp < arr[i]) {
                res = i;
                tmp = arr[i];
            }
        }
        return res;
    }
    public int findMin(double[] arr) {
        int res = 0;
        double tmp = arr[0];
        for(int i = 1; i < arr.length; i++) {
            if(tmp > arr[i]) {
                res = i;
                tmp = arr[i];
            }
        }
        return res;
    }
    void shuffle(int[] a) {
        int n = a.length;
        for(int i = 0; i < n; i++) {
            int r = i + (int) (Math.random() * (n - i));
            int tmp = a[i];
            a[i] = a[r];
            a[r] = tmp;
        }
    }
    private void outln(Object o) {
        System.out.println(o);
    }
    private void out(Object o) {
        System.out.print(o);
    }
    public CF341D() throws IOException {
        br = new BufferedReader(new InputStreamReader(System.in));
        out = new PrintWriter(System.out);
        solve();
        out.close();
    }
    public static void main(String[] args) throws IOException {
        new CF341D();
    }

    public long[] nextLongArr(int n) throws IOException{
        long[] res = new long[n];
        for(int i = 0; i < n; i++)
            res[i] = nextLong();
        return res;
    }
    public int[] nextIntArr(int n) throws IOException {
        int[] res = new int[n];
        for(int i = 0; i < n; i++)
            res[i] = nextInt();
        return res;
    }
    public String nextToken() {
        while (st == null || !st.hasMoreTokens()) {
            try {
                st = new StringTokenizer(br.readLine());
            } catch (Exception e) {
                eof = true;
                return null;
            }
        }
        return st.nextToken();
    }
    public String nextString() {
        try {
            return br.readLine();
        } catch (IOException e) {
            eof = true;
            return null;
        }
    }
    public int nextInt() throws IOException {
        return Integer.parseInt(nextToken());
    }
    public long nextLong() throws IOException {
        return Long.parseLong(nextToken());
    }
    public double nextDouble() throws IOException {
        return Double.parseDouble(nextToken());
    }
}