T = int(input())
for _ in range(T):
	S = input()
	T = input()
	N = len(S)

	dS = []
	dT = []
	for i in range(N):
		dS.append((S[i], i%2))
		dT.append((T[i], i%2))
	dS.sort()
	dT.sort()
	print("Yes" if dS == dT else "No")