using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;

partial class Solver
{
    public class Data
    {
        public int Id { get; set; }
        public int Value { get; set; }
    }

    public void Run()
    {
        var N = ni();
        var Q = ni();
        var S = new int[N];
        var T = new int[N];
        var X = new int[N];
        for (int i = 0; i < N; i++)
        {
            S[i] = ni();
            T[i] = ni();
            X[i] = ni();
        }
        var D = ni(Q);

        var c = new List<int>();
        for (int i = 0; i < N; i++)
        {
            c.Add(S[i] - X[i]);
            c.Add(T[i] - X[i]);
        }
        for (int i = 0; i < Q; i++)
        {
            c.Add(D[i]);
        }

        var dic = IndexDictionaryFactory.Create(c);

        //var tree = new RangeUpdateSegmentTree<int>();

        var tree = new RangeUpdateSegTree<int>(dic.Count, Math.Min, int.MaxValue);

        for (int i = 0; i < N; i++)
        {
            var begin = dic.GetIndex(S[i] - X[i]);
            var end = dic.GetIndex(T[i] - X[i]);

            tree.Update(begin, end - 1, X[i]);
        }


        foreach (var d in D)
        {
            var p = dic.GetIndex(d);
            var ans = tree[p];//.Get(p);
            if (ans == int.MaxValue) ans = -1;
            cout.WriteLine(ans);
        }
    }
}


public class IndexDictionary<T>
{
    private readonly Dictionary<T, int> _toIndex;
    private readonly T[] _array;

    public IndexDictionary(IEnumerable<T> source) : this(source, Comparer<T>.Default) { }

    public IndexDictionary(IEnumerable<T> source, IComparer<T> comparer)
    {
        _array = source.Distinct().ToArray();
        Array.Sort(_array, comparer);
        _toIndex = new Dictionary<T, int>(_array.Length);
        int index = -1;
        foreach (var x in _array) _toIndex[x] = ++index;
    }

    public int Count { get { return _array.Length; } }

    public T this[int index] { get { return _array[index]; } }

    public int GetIndex(T value) { return _toIndex[value]; }
}

public class IndexDictionaryFactory
{
    public static IndexDictionary<T> Create<T>(IEnumerable<T> source)
    {
        return new IndexDictionary<T>(source);
    }
}
public class RangeUpdateSegmentTree<TNodeValue> where TNodeValue : struct
{
    protected int N { get; private set; }
    protected TNodeValue[] node;
    protected static int Left(int p) { return p * 2 + 1; }
    protected static int Right(int p) { return p * 2 + 2; }
    protected Func<TNodeValue, TNodeValue, TNodeValue> Merge;

    public RangeUpdateSegmentTree() { }

    virtual public void Build(int _n, Func<int, TNodeValue> create, Func<TNodeValue, TNodeValue, TNodeValue> merge, TNodeValue unit)
    {
        this.Merge = merge;
        N = 1;
        while (N < _n) N *= 2;
        node = new TNodeValue[2 * N];
        for (int i = 0; i < node.Length; i++) node[i] = unit;
        for (int i = 0; i < _n; i++) node[i + N - 1] = create(i);
        for (int i = N - 2; i >= 0; i--) node[i] = Merge(node[Left(i)], node[Right(i)]);
    }

    public TNodeValue Get(int index)
    {
        int p = index + N - 1;
        var result = node[p];
        while (p > 0)
        {
            p = (p - 1) >> 1;
            result = Merge(result, node[p]);
        }
        return result;
    }

    int Begin, End;

    protected virtual void Update(int k, int l, int r, TNodeValue value)
    {
        if (r <= Begin || End <= l) return;
        if (Begin <= l && r <= End)
        {
            node[k] = Merge(node[k], value);
            return;
        }
        int mid = (l + r) >> 1;
        Update((k << 1) + 1, l, mid, value);
        Update((k << 1) + 2, mid, r, value);
    }

    public void Update(int begin, int end, TNodeValue value)
    {
        Begin = begin;
        End = end;
        Update(0, 0, N, value);
    }
};

// PREWRITEN CODE BEGINS FROM HERE
partial class Solver : Scanner
{
    public static void Main(string[] args)
    {
#if LOCAL
        new Solver(Console.In, Console.Out).Run();
#else
        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false });
        new Solver(Console.In, Console.Out).Run();
        Console.Out.Flush();
#endif
    }

    TextReader cin;
    TextWriter cout;

    public Solver(TextReader reader, TextWriter writer)
        : base(reader)
    {
        this.cin = reader;
        this.cout = writer;
    }
    public Solver(string input, TextWriter writer)
        : this(new StringReader(input), writer)
    {
    }

    public int ni() { return NextInt(); }
    public int[] ni(int n) { return NextIntArray(n); }
    public long nl() { return NextLong(); }
    public long[] nl(int n) { return NextLongArray(n); }
    public double nd() { return NextDouble(); }
    public string ns() { return Next(); }
}

public class Scanner
{
    private TextReader Reader;
    private Queue<String> TokenQueue = new Queue<string>();
    private readonly CultureInfo ci = CultureInfo.InvariantCulture;

    public Scanner()
        : this(Console.In)
    {
    }

    public Scanner(TextReader reader)
    {
        this.Reader = reader;
    }

    public int NextInt() { return Int32.Parse(Next(), ci); }
    public long NextLong() { return Int64.Parse(Next(), ci); }
    public double NextDouble() { return double.Parse(Next(), ci); }
    public string[] NextArray(int size)
    {
        var array = new string[size];
        for (int i = 0; i < size; i++) array[i] = Next();
        return array;
    }
    public int[] NextIntArray(int size)
    {
        var array = new int[size];
        for (int i = 0; i < size; i++) array[i] = NextInt();
        return array;
    }

    public long[] NextLongArray(int size)
    {
        var array = new long[size];
        for (int i = 0; i < size; i++) array[i] = NextLong();
        return array;
    }

    public String Next()
    {
        if (TokenQueue.Count == 0)
        {
            if (!StockTokens()) throw new InvalidOperationException();
        }
        return TokenQueue.Dequeue();
    }

    public bool HasNext()
    {
        if (TokenQueue.Count > 0)
            return true;
        return StockTokens();
    }
    private static char[] separator = new char[] { ' ' };
    private bool StockTokens()
    {
        while (true)
        {
            var line = Reader.ReadLine();
            if (line == null) return false;
            var tokens = line.Trim().Split(separator, StringSplitOptions.RemoveEmptyEntries);
            if (tokens.Length == 0) continue;
            foreach (var token in tokens)
                TokenQueue.Enqueue(token);
            return true;
        }
    }
}

class RangeUpdateSegTree<T>
{
    readonly int n;
    int s, t;
    T[] tr;
    readonly Func<T, T, T> f;
    readonly T exnum;

    /// <summary>
    ///  区間更新セグメントツリーの構築
    /// </summary>
    /// <param name="m">要素数</param>
    /// <param name="f">マージ関数</param>
    /// <param name="ex">単位元</param>
    public RangeUpdateSegTree(int m, Func<T, T, T> f, T ex)
    {
        this.f = f; exnum = ex; n = 1;
        while (n < m) n <<= 1;
        tr = new T[(n << 1) - 1];
        for (int i = 0; i < tr.Length; i++) tr[i] = ex;
    }
    public T Look(int j) => tr[j + n - 1];
    public T Peek() => tr[0];

    /// <summary>
    ///  j に対するクエリ
    /// </summary>
    /// <param name="j"></param>
    /// <returns></returns>
    public T this[int j]
    {
        get
        {
            int i = j + n - 1;
            var ret = tr[i];
            while (i > 0) { i = i - 1 >> 1; ret = f(ret, tr[i]); }
            return ret;
        }
    }
    /// <summary>
    /// [s, t] に対する更新
    /// </summary>
    /// <returns></returns>
    public void Update(int s, int t, T x) { t++; this.s = s; this.t = t; update(0, 0, n, x); }
    void update(int k, int l, int r, T x)
    {
        if (r <= s || t <= l) return;
        if (s <= l && r <= t) tr[k] = f(tr[k], x);
        else
        {
            update(k << 1 | 1, l, l + r >> 1, x);
            update(k + 1 << 1, l + r >> 1, r, x);
        }
    }
}

Measured memory_bytes: 62712