from sys import exit
people_num, note_num = [int(i) for i in input().split()]
people = [int(i) for i in input().split()]
banknotes = [int(i) for i in input().split()]
leftover = [-1 for _ in range(1 << note_num)]
people_covered = [-1 for _ in range(1 << note_num)]
leftover[0] = 0
people_covered[0] = 0
for s in range(1, 1 << note_num):
for last in range(note_num):
if (s & (1 << last)) == 0:
continue
prev = s & ~(1 << last)
if people_covered[prev] == -1:
continue
new_amt = leftover[prev] + banknotes[last]
# the salary of the current person we're going to try to pay
curr_target = people[people_covered[prev]]
# if it's still not enough, just increment the leftover pile
if new_amt < curr_target:
people_covered[s] = people_covered[prev]
leftover[s] = new_amt
"""
or it's exactly right, in which case reset the leftover count
and increment the covered amount
"""
elif new_amt == curr_target:
people_covered[s] = people_covered[prev] + 1
leftover[s] = 0
# we've covered all the people!
if people_covered[s] == people_num:
print("YES")
exit()
print("NO")
