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 PyPy3 (7.3.0) (judge verdict: Accepted)

n,a,b,c = map(int,input().split())

si = [input() for i in range(n)]

if a == 0 and b == 0 and c== 0:
    print("No")
    exit()

s1 = 0
s2 = 0

abc = [a,b,c]
moji = ['A','B','C']

def checkmoji(s):
    if s == "AB":
        s1 = 0
        s2 = 1
    elif s == 'AC':
        s1 = 0
        s2 = 2
    elif s == 'BC':
        s1 = 1
        s2 = 2
    return s1,s2

ans = []

for i in range(n):
    s1,s2 = checkmoji(si[i])
    if abc[s1] == 0 and abc[s2] == 0:
        print('No')
        exit()
    if abc[s2] == 0:
        abc[s1] -= 1
        abc[s2] += 1
        ans.append(moji[s2])
    elif abc[s1] == 0:
        abc[s1] += 1
        abc[s2] -= 1
        ans.append(moji[s1])
    else:
        
        if i == n-1:
            ans.append(moji[s1])
            break
        
        s1_a,s2_a = checkmoji(si[i+1])
        if s1 == s1_a or s1 == s2_a:
            abc[s1] += 1
            abc[s2] -= 1
            ans.append(moji[s1])
        else:
            abc[s1] -= 1
            abc[s2] += 1
            ans.append(moji[s2])
print('Yes')
for i in range(len(ans)):
    print(ans[i])