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)

def main():
    import sys
    input = sys.stdin.readline

    N, A, B, C = map(int, input().split())
    s = [input().rstrip() for _ in range(N)]

    ans = []
    for op in s:
        # print(op)
        if op == 'AB':
            if A == B == 0:
                print('No')
                return

            if A > B:
                A -= 1
                B += 1
                ans.append('B')
            else:
                A += 1
                B -= 1
                ans.append('A')
        elif op == 'AC':
            if A == C == 0:
                print('No')
                return

            if A > C:
                A -= 1
                C += 1
                ans.append('C')
            else:
                A += 1
                C -= 1
                ans.append('A')
        else:
            if B == C == 0:
                print('No')
                return

            if B > C:
                B -= 1
                C += 1
                ans.append('C')
            else:
                B += 1
                C -= 1
                ans.append('B')
        # print(A, B, C)

    print('Yes')
    print(*ans, sep='\n')


if __name__ == '__main__':
    main()

# import sys
# input = sys.stdin.readline
# 
# sys.setrecursionlimit(10 ** 7)
# 
# (int(x)-1 for x in input().split())
# rstrip()
#
# def binary_search(*, ok, ng, func):
#     while abs(ok - ng) > 1:
#         mid = (ok + ng) // 2
#         if func(mid):
#             ok = mid
#         else:
#             ng = mid
#     return ok