using System;
using System.Collections.Generic;
using System.Linq;

// https://yukicoder.me/problems/no/654
class Program
{
    static List<string> GetInputList()
    {
        var WillReturn = new List<string>();
        string wkStr;
        while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        return WillReturn;

        //return System.IO.File.ReadAllLines(@"D:\CSharp\TestConsole\in02.txt").ToList();
    }

    static int mN;
    static int mD;

    static int mSourceNode;
    static int mSinkNode;
    static int UB;

    // 隣接行列で枝を表現
    static long[,] mCapacityArr;
    static long[,] mFlowArr;

    struct PlaneInfoDef
    {
        internal int StaNode;
        internal int EndNode;
        internal int StaTime;
        internal int EndTime;
        internal long Capacity;
    }
    static List<PlaneInfoDef> mPlaneInfoList = new List<PlaneInfoDef>();

    static void Main()
    {
        List<string> InputList = GetInputList();

        int[] wkArr = { };
        Action<string> SplitAct = pStr =>
            wkArr = pStr.Split(' ').Select(pX => int.Parse(pX)).ToArray();

        SplitAct(InputList[0]);
        mN = wkArr[0];
        mD = wkArr[2];

        foreach (string EachStr in InputList.Skip(1)) {
            SplitAct(EachStr);
            PlaneInfoDef WillAdd;
            WillAdd.StaNode = wkArr[0];
            WillAdd.EndNode = wkArr[1];
            WillAdd.StaTime = wkArr[2];
            WillAdd.EndTime = wkArr[3];
            WillAdd.Capacity = wkArr[4];

            // ゴールノードでない場合は、乗り換え時間を足す
            if (WillAdd.EndNode != mN) {
                WillAdd.EndTime += mD;
            }

            if (WillAdd.StaNode == mN) {
                continue;
            }

            mPlaneInfoList.Add(WillAdd);
        }

        // 出発時間の昇順にソートしておく
        mPlaneInfoList = mPlaneInfoList.OrderBy(pX => pX.StaTime).ToList();

        mSourceNode = mPlaneInfoList.Count;
        mSinkNode = mSourceNode + 1;
        UB = mSinkNode;

        mCapacityArr = new long[UB + 1, UB + 1];
        mFlowArr = new long[UB + 1, UB + 1];

        // 枝追加01 Sourceから空港1への枝
        for (int I = 0; I <= mPlaneInfoList.Count - 1; I++) {
            if (mPlaneInfoList[I].StaNode == 1) {
                mCapacityArr[mSourceNode, I] = long.MaxValue;
                break;
            }
        }

        // 枝追加02 空港から飛行機で移動する枝
        for (int I = 0; I <= mPlaneInfoList.Count - 1; I++) {
            for (int J = 0; J <= mPlaneInfoList.Count - 1; J++) {
                if (I == J) continue;
                if (mPlaneInfoList[I].EndNode == mPlaneInfoList[J].StaNode) {
                    if (mPlaneInfoList[I].EndTime <= mPlaneInfoList[J].StaTime) {
                        mCapacityArr[I, J] = mPlaneInfoList[I].Capacity;
                        break;
                    }
                }
            }
        }

        // 枝追加03 ゴールからsinkへの枝
        for (int I = 0; I <= mPlaneInfoList.Count - 1; I++) {
            if (mPlaneInfoList[I].EndNode == mN) {
                mCapacityArr[I, mSinkNode] = mPlaneInfoList[I].Capacity;
            }
        }

        // 枝追加04 空港で待つ分の枝
        for (int I = 0; I <= mPlaneInfoList.Count - 1; I++) {
            for (int J = I + 1; J <= mPlaneInfoList.Count - 1; J++) {
                if (I == J) continue;
                if (mPlaneInfoList[I].StaNode == mPlaneInfoList[J].StaNode) {
                    if (mPlaneInfoList[I].StaTime <= mPlaneInfoList[J].StaTime) {
                        mCapacityArr[I, J] = long.MaxValue;
                        break;
                    }
                }
            }
        }

        // エドモンズ・カープで解く
        Solve();
    }

    static void Solve()
    {
        while (true) {
            List<int> NodeList = ExecBFS();
            if (NodeList == null) break;

            //Console.WriteLine("経路を発見しました");
            //NodeList.ForEach(pX => Console.Write("{0},", pX));
            //Console.WriteLine();

            // 経路に流す量
            long CurrFlow = long.MaxValue;

            for (int I = 0; I <= NodeList.Count - 2; I++) {
                int FromNode = NodeList[I];
                int ToNode = NodeList[I + 1];

                CurrFlow = Math.Min(CurrFlow, mCapacityArr[FromNode, ToNode]);
            }
            //Console.WriteLine("この経路に{0}の水を流します", CurrFlow);

            for (int I = 0; I <= NodeList.Count - 2; I++) {
                int FromNode = NodeList[I];
                int ToNode = NodeList[I + 1];

                mCapacityArr[FromNode, ToNode] -= CurrFlow;
                mFlowArr[FromNode, ToNode] += CurrFlow;
                //print('from={0},to={1},water={2}'.format(u, v , m))
                //Console.WriteLine("from={0},to={1},water={2}", FromNode, ToNode, CurrFlow);

                // 逆辺を追加する
                mCapacityArr[ToNode, FromNode] += CurrFlow;
            }
        }

        long Answer = 0;
        for (int I = 0; I <= UB; I++) {
            Answer += mFlowArr[I, UB];
        }
        Console.WriteLine(Answer);
    }

    struct JyoutaiDef
    {
        internal int CurrNode;
        internal List<int> NodeList;
    }

    // 幅優先探索を行い、始点から終点へのノードのListを返す
    // なければnullを返す
    static List<int> ExecBFS()
    {
        var Queue = new Stack<JyoutaiDef>();
        JyoutaiDef WillEnqueue;
        WillEnqueue.CurrNode = mSourceNode; // 始点のノードはmSourceNode
        WillEnqueue.NodeList = new List<int>();
        WillEnqueue.NodeList.Add(WillEnqueue.CurrNode);
        Queue.Push(WillEnqueue);

        // BFSを繰り返すので、レベルの低い訪問を優先しても問題ない
        var VisitedSet = new HashSet<int>();

        while (Queue.Count > 0) {
            JyoutaiDef Dequeued = Queue.Pop();

            // 終点のノードはmSinkNode
            if (Dequeued.CurrNode == mSinkNode) {
                return Dequeued.NodeList;
            }

            for (int I = 0; I <= UB; I++) {
                long CurrCapacity = mCapacityArr[Dequeued.CurrNode, I];
                if (CurrCapacity == 0) continue;

                if (VisitedSet.Add(I) == false) continue;

                WillEnqueue.CurrNode = I;
                WillEnqueue.NodeList = new List<int>(Dequeued.NodeList) { I };
                Queue.Push(WillEnqueue);
            }
        }
        return null;
    }
}