import sys
def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x) - 1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def II(): return int(sys.stdin.readline())
def SI(): return int(input())
from collections import defaultdict
import bisect

n, q = LI()
ds = []
stx = []
ans = [-1 for i in range(q)]
for i in range(n):
    s, t, x = LI()
    stx.append((s, t, x))
for i in range(q):
    d = SI()
    ds.append(d)
# stx = sorted(stx, key=lambda x: x[2])
for s, t, x in stx:
    sx = s - x
    tx = t - x
    i1 = bisect.bisect_left(ds, sx)
    i2 = bisect.bisect_left(ds, tx)
    for i in range(i1, i2):
        if ans[i] == -1 or ans[i] > x:
            ans[i] = x
for i in ans:
    print(i)
