#include <bits/stdc++.h>
using namespace std;
template <class T> inline bool chmax(T &a, T b) {
    if(a < b) {
        a = b;
        return 1;
    }
    return 0;
}
template <class T> inline bool chmin(T &a, T b) {
    if(a > b) {
        a = b;
        return 1;
    }
    return 0;
}
void print() { cout << "\n"; }
template <class T> void print(const T &x) { cout << x << "\n"; }
template <class T, class... Args> void print(const T &x, const Args &... args) {
    cout << x << " ";
    print(args...);
}
template <class T> void printVector(const vector<T> &v) {
    for(const T &x : v) {
        cout << x << " ";
    }
    cout << "\n";
}
using ll = long long;

#define ALL(v) (v).begin(), (v).end()
#define RALL(v) (v).rbegin(), (v).rend()
const double EPS = 1e-7;
const int INF = 1 << 30;
const ll LLINF = 1LL << 60;
const double PI = acos(-1);
constexpr int MOD = 1000000007;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};

//-------------------------------------

template <typename T, typename E> struct LazySegmentTree {
    using F = function<T(T, T)>;
    using G = function<T(T, E)>;
    using H = function<E(E, E)>;
    using P = function<E(E, int)>;
    F f;
    G g;
    H h;
    P p;
    T d1;
    E d0;
    int n;
    vector<T> node;
    vector<E> lazy;

    LazySegmentTree(
        int sz, F f, G g, H h, T d1, E d0, vector<T> v = vector<T>(),
        P p = [](E a, int b) { return a; })
        : f(f), g(g), h(h), d1(d1), d0(d0), p(p) {
        init(sz);
        if(sz == (int)v.size()) {
            build(sz, v);
        }
    }

    void init(int sz) {
        n = 1;
        while(n < sz) {
            n *= 2;
        }
        node.clear();
        node.resize(2 * n - 1, d1);
        lazy.clear();
        lazy.resize(2 * n - 1, d0);
    }

    void build(int sz, vector<T> v) {
        for(int i = 0; i < sz; i++) {
            node[i + n - 1] = v[i];
        }
        for(int i = n - 2; i >= 0; i--) {
            node[i] = f(node[2 * i + 1], node[2 * i + 2]);
        }
    }

    inline void eval(int len, int now) {
        if(lazy[now] == d0) {
            return;
        }
        if(2 * now + 1 < 2 * n - 1) {
            lazy[2 * now + 1] = h(lazy[2 * now + 1], lazy[now]);
            lazy[2 * now + 2] = h(lazy[2 * now + 2], lazy[now]);
        }
        node[now] = g(node[now], p(lazy[now], len));
        lazy[now] = d0;
    }

    T update(int a, int b, E x, int now = 0, int l = 0, int r = -1) {
        if(r < 0) {
            r = n;
        }
        eval(r - l, now);
        if(r <= a || b <= l) {
            return node[now];
        }
        if(a <= l && r <= b) {
            lazy[now] = h(lazy[now], x);
            return g(node[now], p(lazy[now], r - l));
        }
        T vl = update(a, b, x, 2 * now + 1, l, (l + r) / 2);
        T vr = update(a, b, x, 2 * now + 2, (l + r) / 2, r);
        return node[now] = f(vl, vr);
    }

    T query(int a, int b, int now = 0, int l = 0, int r = -1) {
        if(r < 0) {
            r = n;
        }
        eval(r - l, now);
        if(r <= a || b <= l) {
            return d1;
        }
        if(a <= l && r <= b) {
            return node[now];
        }
        T vl = query(a, b, 2 * now + 1, l, (l + r) / 2);
        T vr = query(a, b, 2 * now + 2, (l + r) / 2, r);
        return f(vl, vr);
    }
};

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n, q;
    cin >> n >> q;
    vector<int> s(n), t(n), x(n), d(q);
    for(int i = 0; i < n; i++) {
        cin >> s[i] >> t[i] >> x[i];
    }
    for(int i = 0; i < q; i++) {
        cin >> d[i];
    }
    auto f = [](const int &a, const int &b) { return min(a, b); };
    auto g = f;
    auto h = f;
    LazySegmentTree<int, int> seg(q, f, g, h, INF, INF, vector<int>(q, INF));
    for(int i = 0; i < n; i++) {
        if(t[i] - x[i] <= 0) {
            continue;
        }
        int l = max(s[i] - x[i], 0), r = t[i] - x[i];
        int L = lower_bound(ALL(d), l) - d.begin();
        int R = lower_bound(ALL(d), r) - d.begin();
        seg.update(L, R, x[i]);
    }
    for(int i = 0; i < q; i++) {
        int res = seg.query(i, i + 1);
        print(res == INF ? -1 : res);
    }
}

Measured memory_bytes: 9184