1999D - Slavic's Exam - CodeForces Solution

for _ in range(int(input())):
    s = list(input())
    t = list(input())
    i = 0
    c = 0
    while i < len(s) and c < len(t):
        if s[i] == "?":
            s[i] = t[c]
        if s[i] == t[c]:
            c += 1
        i += 1
    s = "".join(map(str, s))
    if len(t) == c:
        print("YES")
        print(s.replace("?", "a"))
    else:
        print("NO")