### BUGGY CODE ###

# Treap
#平衡二分木　乱数を用いてできるだけ平衡を保つらしい　
#priorityには乱数を入れること
# d = 0: right rotation
# d = 1: left rotation
def rotate(nd, d):
    c = nd[d]
    if d:
        e = c[1]
        nd[1] = c[0]
        c[0] = nd
    else:
        e = c[0]
        nd[0] = c[1]
        c[1] = nd

    r = c[4] = nd[4]
    nd[4] = r - (e[4] if e else 0) - 1
    return c

# insert a node with key = val and priority = pri
root = None
def insert(val, pri):
    global root
    st = []
    dr = []
    x = root
    while x:
        st.append(x)
        if x[2] == val:
            return
        d = (x[2] < val)
        dr.append(d)
        x = x[d]

    # [<left>, <right>, <key>, <priority>, <count>]
    nd = [None, None, val, pri, 1]
    while st:
        x = st.pop(); d = dr.pop()
        x[d] = nd
        x[4] += 1
        if x[3] >= nd[3]:
            break
        rotate(x, d)
    else:
        root = nd

    for x in st:
        x[4] += 1

def __delete(nd):
    st = []; dr = []
    while nd[0] or nd[1]:
        l = nd[0]; r = nd[1]
        d = (l[3] <= r[3]) if l and r else (l is None)
        st.append(rotate(nd, d))
        dr.append(d ^ 1)
    nd = x = None
    while st:
        nd = x; x = st.pop(); d = dr.pop()
        x[d] = nd
        x[4] -= 1
    return x

def delete(val):
    global root
    x = root

    st = []
    y = None
    while x:
        if val == x[2]:
            break
        y = x; d = (x[2] < val)
        st.append(y)
        x = x[d]
    else:
        return

    if y:
        y[d] = __delete(x)
        for x in st:
            x[4] -= 1
    else:
        root = __delete(x)

def treapmin():
    global root
    x=root
    if not x:
        return -1
    while x[0]:
        x=x[0]
    return x[2]

import sys,random

input=sys.stdin.readline

N,Q=map(int,input().split())
event=[]
for i in range(0,N):
    s,t,x=map(int,input().split())
    event.append((s-x,1,x))
    event.append((t-x,-1,x))

for i in range(0,Q):
    d=int(input())
    event.append((d,2,d))

event.sort()
for j in range(len(event)):
    t,e,x=event[j]
    time=t
    if e==1:
        insert(x,random.randint(1,100000))
    elif e==-1:
        delete(x)
    else:
        print(treapmin())

### FIXED CODE ###

import sys

input=sys.stdin.readline

N,Q=map(int,input().split())
kouji=[]
for i in range(0,N):
    s,t,x=map(int,input().split())
    kouji.append([x,s,t])

d=[]
for i in range(0,Q):
    d.append(int(input()))

kouji.sort(reverse=True)

# N: 処理する区間の長さ

N0 = 2**(Q-1).bit_length()
data = [None]*(2*N0)
INF = (-1,-1)
# 区間[l, r+1)の値をvに書き換える
# vは(t, value)という値にする (新しい値ほどtは大きくなる)
def update(l, r, v):
    L = l + N0; R = r + N0
    while L < R:
        if R & 1:
            R -= 1
            data[R-1] = v

        if L & 1:
            data[L-1] = v
            L += 1
        L >>= 1; R >>= 1
# a_iの現在の値を取得
def _query(k):
    k += N0-1
    s = INF
    while k >= 0:
        if data[k]:
            s = max(s, data[k])
        k = (k - 1) // 2
    return s
# これを呼び出す
def query(k):
    return _query(k)[1]

time=0
for i in range(0,N):
    x,s,t=kouji[i]
    start=0
    end=Q-1
    while end-start>1:
        test=(end+start)//2
        if d[test]>=s-x:
            end=test
        else:
            start=test
    if d[start]>=s-x:
        l=start
    elif d[end]>=s-x:
        l=end
    else:
        l=Q

    start=0
    end=Q-1
    while end-start>1:
        test=(end+start)//2
        if t-x-1>=d[test]:
            start=test
        else:
            end=test
    if t-x-1>=d[end]:
        r=end
    elif t-x-1>=d[start]:
        r=start
    else:
        r=-1
    if r!=-1 and l!=Q and r>=l:
        update(l,r+1,(time,x))
    time+=1

for i in range(0,Q):
    print(query(i))