T = int(input())


def repl(s):
    if s == "0":
        return "1"
    else:
        return "0"


def solve():
    N = int(input())
    S = list(input())
    for i in range(N):
        if S[(i - 2) % N] == S[(i - 1) % N] == S[i] != "?":
            print("No")
            #print(S)
            return
        if S[i] == "?":
            if S[(i - 2) % N] == S[(i - 1) % N] != "?":
                S[i] = repl(S[(i - 1) % N])
    for i in reversed(range(N)):
        if S[(i + 2) % N] == S[(i + 1) % N] == S[i] != "?":
            print("No")
            #print(S)
            return
        if S[i] == "?":
            if S[(i + 2) % N] == S[(i + 1) % N] != "?":
                S[i] = repl(S[(i + 1) % N])
    for i in range(N):
        if S[(i - 2) % N] == S[(i - 1) % N] == S[i] != "?":
            print("No")
            #print(S)
            return

    #print("Yes")
    print(S)


for _ in range(T):
    solve()