using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp48
{
    class Program
    {
        // add=lambda x,y:[x[0]+y[0],"("+x[1]+"+"+y[1]+")"]

        (int first, string last) add(List<int> x, List<int> y)
        {
            return (first: (x[0] + y[0]), last: "(" + x[1] + "+" + y[1] + ")");
        }
        (int first, string last) sub(List<int> x, List<int> y)
        {
            return (first: (x[0] - y[0]), last: "(" + x[1] + "-" + y[1] + ")");
        }
        (int first, string last) mul(List<int> x, List<int> y)
        {
            return (first: (x[0] * y[0]), last: "(" + x[1] + "*" + y[1] + ")");
        }
        (int first, string last) div(List<int> x, List<int> y)
        {
            if (y[0] != 0 && !(x[0] % y[0] != 0))
            {
                return (first: (x[0] / y[0]), last: x[1] + "/" + y[1]); // make sure x[0]/y[0] is int
            }
            else
            {
                return (first: (0), last: x[1] + "/" + y[1]);
            }
        }

        //dropx=lambda x,y:y
        List<int> dropx(List<int> x, List<int> y)
        {
            return y;
        }
        List<int> idropx(List<int> x, List<int> y)
        {
            return x;
        }
        (int first, string last) idiv(List<int> x, List<int> y)
        {
            if (x[0] != 0 && !(y[0] % x[0] != 0))
            {
                return (first: (y[0] / x[0]), last: y[1] + "/" + x[1]); // make sure x[0]/y[0] is int
            }
            else
            {
                return (first: (0), last: y[1] + "/" + x[1]);
            }
        }
        (int first, string last) isub(List<int> x, List<int> y)
        {
            return (first: (y[0] - x[0]), last: "(" + y[1] + "-" + x[1] + ")");
        }

        //ops=[add,sub,mul,div,dropx,isub,idiv,idropx]
        //this is list of functions in if you are familiar with funtion pointer from c++
        //so in C# i have no idea function pointer worker or not so there you can store them as string then call it like this

        string[] ops = new string[] { "add", "sub", "mul", "div", "dropx", "isub", "idiv", "idropx" };


        static int[] num = new int[] { 1, 2, 3, 4, 5, 6 };
        static int target = 999;

        //tab=[[x,str(x)] for x in num]

        static List<int> tabint = new List<int>();
        static List<string> tabstr = new List<string>();
        (int first, string last) countdown(int l, int w)
        {
            if(l <= 1)
            {
                return (first: Math.Abs(tabint[w] - target), last: tabstr[w]);
            }

            int dm = 999999;
            string sm = "";

            for (int i = 1; i < l; i++)
            {
                List<int> a = new List<int>(tabint[i]);

                for (int j = 0; j < l; j++)
                {
                    List<int> b = new List<int>(tabint[j]);

                    for (int k = 0; k < ops.Length; j++)
                    {
                        if (ops[i] == "add")
                        {
                            //tab[j]=f(a,b)
                            (int first, string last) = add(a, b);
                            //tab[w][0] is tabint[w]
                            //tab[w][1]  is tabstr[w]

                            tabint[j] = first;
                            tabstr[j] = last;

                        }
                        else if (ops[i] == "sub")
                        {
                            (int first, string last) = sub(a, b);

                            tabint[j] = first;
                            tabstr[j] = last;
                        }
                        else if (ops[i] == "mul")
                        {
                            (int first, string last) = mul(a, b);

                            tabint[j] = first;
                            tabstr[j] = last;
                        }
                        else if (ops[i] == "div")
                        {
                            (int first, string last) = div(a, b);

                            tabint[j] = first;
                            tabstr[j] = last;
                        }
                        else if (ops[i] == "dropx")
                        {
                            List<int> first = dropx(a, b);

                            tabint[j] = first[0];
                            tabstr[j] = first[0].ToString();
                        }
                        else if (ops[i] == "isub")
                        {
                            (int first, string last) = isub(a, b);

                            tabint[j] = first;
                            tabstr[j] = last;
                        }
                        else if (ops[i] == "idiv")
                        {
                            (int first, string last) = idiv(a, b);

                            tabint[j] = first;
                            tabstr[j] = last;
                        }
                        else if (ops[i] == "idropx")
                        {
                            List<int> first = dropx(a, b);

                            tabint[j] = first[0];
                            tabstr[j] = first[0].ToString();
                        }

                        (int d, string s) = countdown(l - 1, j);

                        if (d < dm || ((d == dm) && s.Length < sm.Length))
                        {
                            sm = s;
                            dm = d;
                        }
                    }

                    tabint[j] = b[0];
                    tabstr[j] = b[0].ToString();
                }

                tabint[i] = a[0];
                tabstr[i] = a[0].ToString();
            }

            return (first: dm, last: sm);
        }
        static void Main(string[] args)
        {
            Program prog = new Program();

            for (int i = 0; i < num.Length; i++)
            {
                tabint.Add(num[i]);
                tabstr.Add(num[i] + "");
            }

            (int d, string s) = prog.countdown(num.Length, 0);

            Console.WriteLine(target - d + "=" + s);
        }
    }
}