using System;


namespace ZeroSubsets
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter numbers count:");
            int numberCount = int.Parse(Console.ReadLine());
            Console.WriteLine("Enter subset sum:");
            int subsetSum = int.Parse(Console.ReadLine());
            int[] numbersArray = new int[numberCount];
            for (int i = 0; i < numberCount; i++)
            {
                numbersArray[i] = int.Parse(Console.ReadLine());
            }
            int iterations = (1 << numberCount) - 1;
            int bitMask = 0;
            bool noZeroSubset = true;
            int currentSum = 0;
            for (int i = 1; i < iterations; i++)
            {
                bitMask = i;
                currentSum = 0;
                int j = 0;
                int index = 0;
                string[] sumText = new string[numberCount];
                while (j < numberCount)
                {
                    if ((bitMask & 1) == 1)
                    {
                        currentSum += numbersArray[j];
                        sumText[index] = numbersArray[j].ToString();
                        index++;
                    }
                    bitMask = bitMask >> 1;
                    j++;
                }
                if (currentSum == subsetSum)
                {
                    noZeroSubset = false;
                    foreach (var number in sumText)
                    {
                        Console.Write(number + "+");
                    }
                    Console.Write("={0}", subsetSum);
                    Console.WriteLine();
                }
            }
            if (noZeroSubset)
            {
                Console.WriteLine("No zero subset");
            }

        }
    }
}