a=[]
flag = False
loop=int(input())
input()
for i in range(loop):
a.append(input())
input()
t= input()
for i in range(len(a)):
if a[i] not in t:
flag = True
a.sort()
for i in reversed(a):
t = t.replace(i,"")
if flag != True:
flag= True if len(t) > 0 else False
if(flag):
print("No")
else:
print("Yes")
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