Crossing sequences

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

namespace Crossing_sequences
{
    class Program
    {
        static void Main(string[] args)
        {

            int spi = 0; int spir1 = 1000001; int spir2 = 1000001; int spir3 = 1000001; int spir4 = 1000001; int spir5 = 1000001;
            int tri1 = int.Parse(Console.ReadLine());
            int tri2 = int.Parse(Console.ReadLine());
            int tri3 = int.Parse(Console.ReadLine());
            int spi1 = int.Parse(Console.ReadLine());
            int spi2 = int.Parse(Console.ReadLine());

            int spi0 = spi1;

            int tri4 = tri1 + tri2 + tri3;
            int trib1 = tri1; int trib2 = tri2; int trib3 = tri3; int trib4 = tri4;
            for (int i = 1; i <= 50; i++)
            {
                tri1 = tri2; tri2 = tri3; tri3 = tri4;
                tri4 = tri1 + tri2 + tri3;
                spi1 = spi0;
                for (int j = 1; j <= 1100; j++)
                {
                    if (tri4 > 1000000 || spi1 > 1000000)
                    {
                        break;
                    }
                    for (int k = 1; k <= 2; k++)
                    {
                        if (spi1 == trib1)
                        {
                            spir1 = spi1;
                        }
                        else if (spi1 == trib2)
                        {
                            spir2 = spi1;
                        }
                        else if (spi1 == trib3)
                        {
                            spir3 = spi1;
                        }
                        else if (spi1 == trib4)
                        {
                            spir4 = spi1;
                        }
                        else if (spi1 == tri4)
                        {
                            spir5 = spi1;
                        }
                        spi = spi1 + j * spi2;
                        spi1 = spi;
                    }
                }
            }
            if (spir1 + spir2 + spir3 + spir4 + spir5 != 5000005)
            {
                Console.WriteLine(Math.Min(Math.Min(Math.Min(Math.Min(spir1, spir2), spir3), spir4), spir5));
            }
            else
            {
                Console.WriteLine("No");
            }
        }
    }
}