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import sys
def ifmatching(m,n):
if not n or not m:
return False
if 'B' not in n:
return True
if 'A' in n:
return False
if m=='1':
return True
return False
test_cases = open(sys.argv[1], 'r')
for test in test_cases:
s1,s2=test.strip().split(' ')
x,y=len(s1),len(s2) #x is length of 1st argument, y is 2nd.
if x>y or x<1 or y<1:
print "No"
continue
# mtx initilized as 0 all.
mtx=[[0 for col in range(y)] for row in range(x)]
# len of s1=1, just a simple check.
if x==1:
print "Yes" if ifmatching(s1,s2) else "No"
continue
# init mtx[0], 1st row, check s1[0] if matching s2[0-?]
# i=0
for j in range(y-x+1):
if ifmatching(s1[0],s2[:j+1]):
mtx[0][j]=1
for i in range(x-2):
for j in range(i,y-x+1+i):
if mtx[i][j]==1:
for k in range(j+1,y-x+2+i):
if not mtx[i+1][k]:
if not ifmatching(s1[i+1],s2[j+1:k+1]):
break
mtx[i+1][k]=1
# i=x-2 , j in range(y-1)
i=x-2
for j in range(y-1):
if mtx[i][j]:
if ifmatching(s1[x-1],s2[j+1:]):
mtx[x-1][y-1]=1
break
print "Yes" if mtx[x-1][y-1] else "No"
test_cases.close()