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

namespace AtCorder
{
	public class Program
	{
		static void Main(string[] args)
		{
			var cin = new Scanner2();
			int n = cin.Int();
			int q = cin.Int();
			var stx = new STX[n];
			for (int i = 0; i < n; i++) {
				long s = cin.Long();
				long t = cin.Long();
				long x = cin.Long();
				stx[i] = new STX { S = s - x, T = t - x, X = x};
			}

			long[] d = new long[q];
			for (int i = 0; i < q; i++) {
				d[i] = cin.Long();
			}

			var start = new List<long>[q];
			var end = new List<long>[q];
			for (int i = 0; i < q; i++) {
				start[i] = new List<long>();
				end[i] = new List<long>();
			}

			for (int i = 0; i < n; i++) {
				int si = LowerBound(d, stx[i].S);
				int ti = LowerBound(d, stx[i].T) - 1;
				if (ti < 0 || ti < si) {
					continue;
				}

				si = Math.Max(0, si);
				ti = Math.Max(0, ti);

				if (si < q) {
					start[si].Add(stx[i].X);
				}

				if (ti < q) {
					end[ti].Add(stx[i].X);
				}
			}

			var sb = new StringBuilder();
			var set = new MultiSet<long>(q);
			for (int i = 0; i < q; i++) {
				foreach (long val in start[i]) {
					set.Add(val);
				}

				if (set.Count > 0) {
					sb.AppendLine(set.Min.ToString());
				} else {
					sb.AppendLine("-1");
				}

				foreach (long val in end[i]) {
					set.Remove(val);
				}
			}

			Console.WriteLine(sb.ToString());
		}

		public static int LowerBound(IReadOnlyList<long> list, long target)
		{
			int left = -1;
			int right = list.Count();

			while (right - left > 1) {
				int mid = (right + left) / 2;
				if (list[mid] >= target) {
					right = mid;
				} else {
					left = mid;
				}
			}

			return right;
		}

		public static int UpperBound(IReadOnlyList<long> list, long target)
		{
			int left = -1;
			int right = list.Count();

			while (right - left > 1) {
				int mid = (right + left) / 2;
				if (list[mid] > target) {
					right = mid;
				} else {
					left = mid;
				}
			}

			return right;
		}
	}

	public struct STX
	{
		public long S { get; set; }
		public long T { get; set; }

		public long X { get; set; }
	}

	public class MultiSet<T> :
		IEnumerable<T>,
		System.Collections.IEnumerable,
		ICollection<T>,
		System.Collections.ICollection,
		IReadOnlyCollection<T>
	{
		private readonly SortedSet<T> set_;
		private readonly Dictionary<T, int> counts_ = new Dictionary<T, int>();

		public MultiSet(
			int capacity,
			IEnumerable<T> collection = null,
			IComparer<T> comparer = null)
		{
			counts_ = new Dictionary<T, int>(capacity);
			if (collection == null && comparer == null) {
				set_ = new SortedSet<T>();
			} else if (collection == null) {
				set_ = new SortedSet<T>(comparer);
			} else if (comparer == null) {
				set_ = new SortedSet<T>(collection);
			} else {
				set_ = new SortedSet<T>(collection, comparer);
			}
		}

		public IComparer<T> Comparer => set_.Comparer;
		public int Count { get; private set; }
		public T Max => set_.Max;
		public T Min => set_.Min;

		public bool IsReadOnly => false;

		object System.Collections.ICollection.SyncRoot
			=> (set_ as System.Collections.ICollection).SyncRoot;

		bool System.Collections.ICollection.IsSynchronized
			=> (set_ as System.Collections.ICollection).IsSynchronized;

		public bool Add(T item)
		{
			if (counts_.ContainsKey(item) == false) {
				counts_[item] = 1;
			} else {
				counts_[item]++;
			}

			set_.Add(item);
			++Count;
			return true;
		}

		public bool Remove(T item)
		{
			if (counts_.ContainsKey(item) == false) {
				return false;
			}

			counts_[item]--;
			Count--;
			if (counts_[item] == 0) {
				counts_.Remove(item);
				set_.Remove(item);
			}

			return true;
		}

		public void Clear()
		{
			counts_.Clear();
			Count = 0;
			set_.Clear();
		}

		public bool Contains(T item) => set_.Contains(item);

		public IEnumerator<T> GetEnumerator()
		{
			foreach (var s in set_) {
				for (int i = 0; i < counts_[s]; i++) {
					yield return s;
				}
			}
		}

		System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
			=> GetEnumerator();

		void ICollection<T>.Add(T item) => Add(item);

		public void CopyTo(T[] array, int arrayIndex)
		{
			int index = arrayIndex;
			foreach (var s in set_) {
				for (int i = 0; i < counts_[s]; i++) {
					array[index] = s;
					++index;
				}
			}
		}

		void System.Collections.ICollection.CopyTo(Array array, int index)
		{
		}
	}

	public class Scanner2
	{
		private readonly char[] delimiter_ = new char[] { ' ' };
		private readonly string filePath_;
		private readonly Func<string> reader_;
		private string[] buf_;
		private int index_;

		public Scanner2(string file = "")
		{
			if (string.IsNullOrWhiteSpace(file)) {
				reader_ = Console.ReadLine;
			} else {
				filePath_ = file;
				var fs = new StreamReader(file);
				reader_ = fs.ReadLine;
			}
			buf_ = new string[0];
			index_ = 0;
		}

		public string Next()
		{
			if (index_ < buf_.Length) {
				return buf_[index_++];
			}

			string st = reader_();
			while (st == "") {
				st = reader_();
			}

			buf_ = st.Split(delimiter_, StringSplitOptions.RemoveEmptyEntries);
			if (buf_.Length == 0) {
				return Next();
			}

			index_ = 0;
			return buf_[index_++];
		}

		public int Int() => int.Parse(Next());
		public long Long() => long.Parse(Next());
		public double Double() => double.Parse(Next());

		public int[] ArrayInt(int N, int add = 0)
		{
			int[] Array = new int[N];
			for (int i = 0; i < N; i++) {
				Array[i] = Int() + add;
			}
			return Array;
		}

		public long[] ArrayLong(int N, long add = 0)
		{
			long[] Array = new long[N];
			for (int i = 0; i < N; i++) {
				Array[i] = Long() + add;
			}
			return Array;
		}

		public double[] ArrayDouble(int N, double add = 0)
		{
			double[] Array = new double[N];
			for (int i = 0; i < N; i++) {
				Array[i] = Double() + add;
			}
			return Array;
		}

		public void Save(string text)
		{
			if (string.IsNullOrWhiteSpace(filePath_)) {
				return;
			}

			File.WriteAllText(filePath_ + "_output.txt", text);
		}
	}
}

Measured memory_bytes: 80468