import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.PriorityQueue;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.TreeSet;
import java.io.UncheckedIOException;
import java.util.Objects;
import java.util.AbstractCollection;
import java.nio.charset.Charset;
import java.util.StringTokenizer;
import java.io.Writer;
import java.io.OutputStreamWriter;
import java.io.BufferedReader;
import java.util.Comparator;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author mikit
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        LightScanner in = new LightScanner(inputStream);
        LightWriter out = new LightWriter(outputStream);
        ERoadwork solver = new ERoadwork();
        solver.solve(1, in, out);
        out.close();
    }

    static class ERoadwork {
        public void solve(int testNumber, LightScanner in, LightWriter out) {
            // out.setBoolLabel(LightWriter.BoolLabel.YES_NO_FIRST_UP);
            int n = in.ints(), q = in.ints();
            PriorityQueue<ERoadwork.RoadWork> fut = new PriorityQueue<>(Comparator.comparing(w -> w.from));
            PriorityQueue<ERoadwork.RoadWork> now = new PriorityQueue<>(Comparator.comparing(w -> w.to));
            for (int i = 0; i < n; i++) {
                int start = in.ints(), end = in.ints(), pos = in.ints();
                fut.offer(new ERoadwork.RoadWork(start - pos, end - pos, pos));
            }

            TreeSet<Integer> pos = new TreeSet<>();
            for (int i = 0; i < q; i++) {
                int t = in.ints();
                while (!now.isEmpty() && now.peek().to <= t) {
                    ERoadwork.RoadWork w = now.poll();
                    pos.remove(w.pos);
                }
                while (!fut.isEmpty() && fut.peek().from <= t) {
                    ERoadwork.RoadWork w = fut.poll();
                    if (w.to > t) {
                        pos.add(w.pos);
                        now.offer(w);
                    }
                }
                if (pos.isEmpty()) {
                    out.ans(-1).ln();
                } else {
                    out.ans(pos.first()).ln();
                }
            }
        }

        private static class RoadWork {
            int from;
            int to;
            int pos;

            public RoadWork(int from, int to, int pos) {
                this.from = from;
                this.to = to;
                this.pos = pos;
            }

            public String toString() {
                return "{" +
                        "from=" + from +
                        ", to=" + to +
                        ", pos=" + pos +
                        '}';
            }

        }

    }

    static class LightWriter implements AutoCloseable {
        private final Writer out;
        private boolean autoflush = false;
        private boolean breaked = true;

        public LightWriter(Writer out) {
            this.out = out;
        }

        public LightWriter(OutputStream out) {
            this(new BufferedWriter(new OutputStreamWriter(out, Charset.defaultCharset())));
        }

        public LightWriter print(char c) {
            try {
                out.write(c);
                breaked = false;
            } catch (IOException ex) {
                throw new UncheckedIOException(ex);
            }
            return this;
        }

        public LightWriter print(String s) {
            try {
                out.write(s, 0, s.length());
                breaked = false;
            } catch (IOException ex) {
                throw new UncheckedIOException(ex);
            }
            return this;
        }

        public LightWriter ans(String s) {
            if (!breaked) {
                print(' ');
            }
            return print(s);
        }

        public LightWriter ans(int i) {
            return ans(Integer.toString(i));
        }

        public LightWriter ans(Object obj) {
            return ans(Objects.toString(obj));
        }

        public LightWriter ln() {
            print(System.lineSeparator());
            breaked = true;
            if (autoflush) {
                try {
                    out.flush();
                } catch (IOException ex) {
                    throw new UncheckedIOException(ex);
                }
            }
            return this;
        }

        public void close() {
            try {
                out.close();
            } catch (IOException ex) {
                throw new UncheckedIOException(ex);
            }
        }

    }

    static class LightScanner {
        private BufferedReader reader = null;
        private StringTokenizer tokenizer = null;

        public LightScanner(InputStream in) {
            reader = new BufferedReader(new InputStreamReader(in));
        }

        public String string() {
            if (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new UncheckedIOException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int ints() {
            return Integer.parseInt(string());
        }

    }
}



Measured memory_bytes: 181236