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)

n,a,b,c=map(int,input().split())
s=list(input() for i in range(n))+["XX"]
ans=["Yes"]
if a+b+c==0:
  del ans[:]
  ans+=["No"]
  
if a+b+c==1:
  for j in range(n):
    
    if s[j]=="AB":
      if c==1:
        del ans[:]
        ans+=["No"]
        break        
      elif a==1:
        a-=1
        b+=1
        ans+=["B"]
      elif b==1:
        a+=1
        b-=1
        ans+=["A"]

    if s[j]=="AC":
      if b==1:
        del ans[:]
        ans+=["No"]
        break       
      elif a==1:
        a-=1
        c+=1
        ans+=["C"]
      elif c==1:
        a+=1
        c-=1
        ans+=["A"] 

    if s[j]=="BC":
      if a==1:
        del ans[:]
        ans+=["No"]
        break
      elif b==1:
        b-=1
        c+=1
        ans+="C"
      elif c==1:
        b+=1
        c-=1
        ans+=["B"]  

if a+b+c==2:
  for j in range(n):
    
    if s[j]=="AB":
      if a==2:
        a-=1
        b+=1
        ans+=["B"]
      elif b==2:
        a+=1
        b-=1
        ans+=["A"]
      elif c==2:
        del ans[:]
        ans+=["No"]
        break     
      elif a==1 and b==1:
        if s[j+1]=="AB" or "AC" or "XX":
          a+=1
          b-=1
          ans+=["A"]
        if s[j+1]=="BC":
          a-=1
          b+=1
          ans+=["B"]
      elif a==1 and c==1:
        a-=1
        b+=1
        ans+=["B"]
      elif b==1 and c==1:
        a+=1
        b-=1
        ans+=["A"]
    
    if s[j]=="AC":
      if a==2:
        a-=1
        c+=1
        ans+=["C"]
      elif c==2:
        a+=1
        c-=1
        ans+=["A"] 
      elif b==2:
        del ans[:]
        ans+=["No"]
        break     
      elif a==1 and c==1:
        if s[j+1]=="AB" or "AC" or "XX":
          a+=1
          c-=1
          ans+=["A"]
        if s[j+1]=="BC":
          a-=1
          c+=1
          ans+=["C"]
      elif a==1 and b==1:
        a-=1
        c+=1
        ans+=["C"]
      elif b==1 and c==1:
        a+=1
        c-=1
        ans+=["A"]

    if s[j]=="BC":
      if c==2:
        c-=1
        b+=1
        ans+=["B"]
      elif b==2:
        c+=1
        b-=1
        ans+=["C"] 
      elif a==2:
        del ans[:]
        ans+=["No"]
        break     
      elif c==1 and b==1:
        if s[j+1]=="AB" or "BC" or "XX":
          b+=1
          c-=1
          ans+=["B"]
        if s[j+1]=="AC":
          b-=1
          c+=1
          ans+=["C"]
      elif a==1 and c==1:
        c-=1
        b+=1
        ans+=["B"]
      elif b==1 and a==1:
        c+=1
        b-=1
        ans+=["C"]        

if a+b+c>=3:
  if s[0]=="AB" and a+b==0 or s[0]=="AC" and a+c==0 or s[0]=="BC" and b+c==0:
    del ans[:]
    ans+=["No"]
  
  else:
    for j in range(n):
      if s[j]=="AB":
        if a>b:
          a-=1
          b+=1
          ans+=["B"]
        elif a<=b:
          a+=1
          b-=1
          ans+=["A"]
        
      if s[j]=="AC":
        if a>c:
          a-=1
          c+=1
          ans+=["C"]
        elif a<=c:
          a+=1
          c-=1
          ans+=["A"]     

      if s[j]=="BC":
        if b>c:
          b-=1
          c+=1
          ans+=["C"]
        elif b<=c:
          b+=1
          c-=1
          ans+=["B"]

for an in ans:
  print(an)