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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#!/usr/bin/env python3
# 621D_cheese.py - Codeforces.com/problemset/problem/621/D by Sergey 2016

import unittest
import sys
from decimal import Decimal

###############################################################################
# Cheese Class (Main Program)
###############################################################################


class Cheese:
    """ Cheese representation """

    def __init__(self, test_inputs=None):
        """ Default constructor """

        it = iter(test_inputs.split("\n")) if test_inputs else None

        def uinput():
            return next(it) if it else sys.stdin.readline().rstrip()

        # Reading single elements
        [self.x, self.y, self.z] = map(Decimal, uinput().split())

        self.nums = [self.x, self.y, self.z]
        self.symbs = ['x', 'y', 'z']
        self.result = ""
        if (self.x > 2 and self.y > 2 and self.z > 2):
            self.pos = [0, 1, 2]
            self.srt = sorted(zip(self.nums, self.pos))
            self.result = (
                self.symbs[self.srt[0][1]] + "^" +
                self.symbs[self.srt[1][1]] + "^" +
                self.symbs[self.srt[2][1]])
            return
        max = 0

        v = (self.z**self.y)**self.x
        if v >= max:
            max = v
            self.result = "(z^y)^x"

        v = (self.z**self.x)**self.y
        if v >= max:
            max = v
            self.result = "(z^x)^y"

        v = self.z**(self.y**self.x)
        if v >= max:
            max = v
            self.result = "z^y^x"

        v = self.z**(self.x**self.y)
        if v >= max:
            max = v
            self.result = "z^x^y"

        v = (self.y**self.z)**self.x
        if v >= max:
            max = v
            self.result = "(y^z)^x"

        v = (self.y**self.x)**self.z
        if v >= max:
            max = v
            self.result = "(y^x)^z"

        v = self.y**(self.z**self.x)
        if v >= max:
            max = v
            self.result = "y^z^x"

        v = self.y**(self.x**self.z)
        if v >= max:
            max = v
            self.result = "y^x^z"

        v = (self.x**self.z)**self.y
        if v >= max:
            max = v
            self.result = "(x^z)^y"

        v = (self.x**self.y)**self.z
        if v >= max:
            max = v
            self.result = "(x^y)^z"

        v = self.x**(self.z**self.y)
        if v >= max:
            max = v
            self.result = "x^z^y"

        v = self.x**(self.y**self.z)
        if v >= max:
            max = v
            self.result = "x^y^z"

    def calculate(self):
        """ Main calcualtion function of the class """

        return self.result

###############################################################################
# Unit Tests
###############################################################################


class unitTests(unittest.TestCase):

    def test_single_test(self):
        """ Cheese class testing """

        # Constructor test
        test = "1.1 3.4 2.5"
        d = Cheese(test)

        # Sample test
        self.assertEqual(Cheese(test).calculate(), "z^y^x")

        # Sample test
        test = "2.0 2.0 2.0"
        self.assertEqual(Cheese(test).calculate(), "x^y^z")

        # Sample test
        test = "1.9 1.8 1.7"
        self.assertEqual(Cheese(test).calculate(), "(x^y)^z")

        # My tests
        test = ""
        # self.assertEqual(Cheese(test).calculate(), "0")

        # Time limit test
        # self.time_limit_test(5000)

    def time_limit_test(self, nmax):
        """ Timelimit testing """
        import random
        import timeit

        # Random inputs
        test = str(nmax) + " " + str(nmax) + "\n"
        numnums = [str(i) + " " + str(i+1) for i in range(nmax)]
        test += "\n".join(numnums) + "\n"
        nums = [random.randint(1, 10000) for i in range(nmax)]
        test += " ".join(map(str, nums)) + "\n"

        # Run the test
        start = timeit.default_timer()
        d = Cheese(test)
        calc = timeit.default_timer()
        d.calculate()
        stop = timeit.default_timer()
        print("\nTimelimit Test: " +
              "{0:.3f}s (init {1:.3f}s calc {2:.3f}s)".
              format(stop-start, calc-start, stop-calc))

if __name__ == "__main__":

    # Avoiding recursion limitaions
    sys.setrecursionlimit(100000)

    if sys.argv[-1] == "-ut":
        unittest.main(argv=[" "])

    # Print the result string
    sys.stdout.write(Cheese().calculate())
