Problem:
Score : 600 points

Problem Statement

There is a game that involves three variables, denoted A, B, and C.

As the game progresses, there will be N events where you are asked to make a choice.
Each of these choices is represented by a string s_i. If s_i is AB, you must add 1 to A or B then subtract 1 from the other; if s_i is AC, you must add 1 to A or C then subtract 1 from the other; if s_i is BC, you must add 1 to B or C then subtract 1 from the other.

After each choice, none of A, B, and C should be negative.

Determine whether it is possible to make N choices under this condition. If it is possible, also give one such way to make the choices.

Constraints

1 \leq N \leq 10^5

0 \leq A,B,C \leq 10^9

N, A, B, C are integers.

s_i is AB, AC, or BC.

Input

Input is given from Standard Input in the following format:

N A B C
s_1
s_2
:
s_N

Output

If it is possible to make N choices under the condition, print Yes; otherwise, print No.

Also, in the former case, show one such way to make the choices in the subsequent N lines. The (i+1)-th line should contain the name of the variable (A, B, or C) to which you add 1 in the i-th choice.

Sample Input 1

2 1 3 0
AB
AC

Sample Output 1

Yes
A
C

You can successfully make two choices, as follows:

In the first choice, add 1 to A and subtract 1 from B. A becomes 2, and B becomes 2.

In the second choice, add 1 to C and subtract 1 from A. C becomes 1, and A becomes 1.

Sample Input 2

3 1 0 0
AB
BC
AB

Sample Output 2

No

Sample Input 3

1 0 9 0
AC

Sample Output 3

No

Sample Input 4

8 6 9 1
AC
BC
AB
BC
AC
BC
AB
AB

Sample Output 4

Yes
C
B
B
C
C
B
A
A

Solution in Python (3.8.2) (judge verdict: Wrong Answer)


si = lambda: input().strip()
ii = lambda: int(input())
mii = lambda: map(int, input().split())
msi = lambda: map(str, input().split())
lmii = lambda: list(map(int, input().split()))
lmsi = lambda: list(map(str, input().split()))
smii = lambda: sorted(map(int, input().split()))


# ----------

N, A, B, C = mii()
S = []
for i in range(N):
    S.append(si())

v = dict()
v['A'] = A
v['B'] = B
v['C'] = C

ans = []

for i in range(N):
    s1, s2 = list(S[i])
    # 両方0
    if v[s1] == v[s2] == 0:
        print('No')
        exit()
    # 片方0
    if v[s1] > 0 and v[s2] == 0:
        v[s1] -= 1
        v[s2] += 1
        ans.append(s2)
        continue
    if v[s1] == 0 and v[s2] > 0:
        v[s1] += 1
        v[s2] -= 1
        ans.append(s1)
        continue

    if i == N - 1:
        v[s1] += 1
        v[s2] -= 1
        ans.append(s1)
        continue

    if S[i] != S[i+1]:
        if s1 in S[i+1]:
            v[s1] += 1
            v[s2] -= 1
            ans.append(s1)
            continue

    v[s1] += 1
    v[s2] -= 1
    ans.append(s1)

print('Yes')
for a in ans:
    print(a)