Zero Subset

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

namespace novo2
{
    class Program
    {

        static void Main(string[] args)
        {
            int firstNumber;
            firstNumber = int.Parse(Console.ReadLine());
            int secondNumber;
            secondNumber = int.Parse(Console.ReadLine());
            int thirdNumber;
            thirdNumber = int.Parse(Console.ReadLine());
            int fourthNumber;
            fourthNumber = int.Parse(Console.ReadLine());
            int fifthNumber;
            fifthNumber = int.Parse(Console.ReadLine());
            int a;
            int b;
            int c;
            int d;
            int e;
            a = firstNumber;
            b = secondNumber;
            c = thirdNumber;
            d = fourthNumber;
            e = fifthNumber;
            int def = 0;



                        if (a + b == 0)
                        {

                            Console.WriteLine("{0} + {1} = 0", a, b);
                            def = 1;
                        }


                        if (a + b + c == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", a, b, c);
                            def = 1;
                        }
                        if (a + c == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", a, c);
                            def = 1;
                        }
                        if (b + c == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", b, c);
                            def = 1;
                        }


                        if (a + b + c + d == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} + {3} = 0", a, b, c, d);
                            def = 1;
                        }
                        if (a + b + d == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", a, b, d);
                            def = 1;
                        }
                        if (a + c + d == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", a, c, d);
                            def = 1;
                        }
                        if (b + c + d == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", b, c, d);
                            def = 1;
                        }
                        if (a + d == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", a, d);
                            def = 1;
                        }
                        if (b + d == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", b, d);
                            def = 1;
                        }
                        if (c + d == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", c, d);
                            def = 1;
                        }


                        if (a + b + c + d + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} + {3} + {4} = 0", a, b, c, d, e);
                            def = 1;
                        }
                        if (a + e + c + d == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} + {3} = 0", a, c, d, e);
                            def = 1;
                        }
                        if (e + b + c + d == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} + {3} = 0", b, c, d, e);
                            def = 1;
                        }
                        if (a + b + e + d == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} + {3} = 0", a, b, d, e);
                            def = 1;
                        }
                        if (a + b + c + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} + {3} = 0", a, b, c, e);
                            def = 1;
                        }
                        if (a + b + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", a, b, e);
                            def = 1;
                        }
                        if (a + c + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", a, c, e);
                            def = 1;
                        }
                        if (a + d + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", a, d, e);
                            def = 1;
                        }
                        if (c + b + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", b, c, e);
                            def = 1;
                        }
                        if (d + b + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", b, d, e);
                            def = 1;
                        }
                        if (c + d + e == 0)
                        {
                            Console.WriteLine("{0} + {1} + {2} = 0", c, d, e);
                            def = 1;
                        }
                        if (a + e == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", a, e);
                            def = 1;
                        }
                        if (b + e == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", b, e);
                            def = 1;
                        }
                        if (c + e == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", c, e);
                            def = 1;
                        }
                        if (d + e == 0)
                        {
                            Console.WriteLine("{0} + {1} = 0", d, e);
                            def = 1;
                        }
                    if ( def == 0)
                    {
                        Console.WriteLine("No zero subset");
                    }
                }
            }
        }