Submission #57543443

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Source Code Expand

S = input()
T = input()
N = len(S)
X = []
sa = []
for i in range(N):
  sa.append(ord(T[i]) - ord(S[i]))

ma = True
now = S

for i in range(N):
  if sa[i] < 0:
    if i+1 != N:
      now = now[:i] + T[i] + now[i+1:]
      X.append(now)
    else:
      now = now[:i] + T[i]
      X.append(now)
for i in range(N-1,-1,-1):
  if sa[i] > 0:
    if i+1 != N:
      now = now[:i] + T[i] + now[i+1:]
      X.append(now)
    else:
      now = now[:i] + T[i]
      X.append(now)

print(len(X))
for i in range(len(X)):
  print(X[i])

Submission Info

Judge Result