using System;

public class Hello
{
    public static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var n = int.Parse(line[0]);
        var a = int.Parse(line[1]);
        var b = int.Parse(line[2]);
        var c = int.Parse(line[3]);
        var cmd = new int[n];
        for (int i = 0; i < n; i++)
        {
            var s = Console.ReadLine().Trim();
            if (s == "BC") cmd[i] = 1;
            else if (s == "AC") cmd[i] = 2;
        }
        getAns(n, a, b, c, cmd);
    }
    static void abc3(int n, int a, int b, int c, int[] cmd)
    {
        var ans = new string[n];
        for (int i = 0; i < n; i++)
        {
            if (cmd[i] == 0)
            {
                if (a == 0) { a++; b--; ans[i] = "A"; }
                else if (b == 0) { b++; a--; ans[i] = "B"; }
                else
                {
                    if (a > b) { a--; b++; ans[i] = "B"; }
                    else { a++; b--; ans[i] = "A"; }
                }
            }
            else if (cmd[i] == 1)
            {
                if (b == 0) { b++; c--; ans[i] = "B"; }
                else if (c == 0) { c++; b--; ans[i] = "C"; }
                else
                {
                    if (b > c) { b--; c++; ans[i] = "C"; }
                    else { b++; c--; ans[i] = "B"; }
                }
            }
            else
            {
                if (c == 0) { c++; a--; ans[i] = "C"; }
                else if (a == 0) { a++; c--; ans[i] = "A"; }
                else
                {
                    if ( c > a) { c--; a++; ans[i] = "A"; }
                    else { c++; a--; ans[i] = "C"; }
                }
            }
        }
        Console.WriteLine("Yes");
        Console.WriteLine(string.Join("\n", ans));
    }
    static void abc2(int n, int a, int b, int c, int[] cmd)
    {
        var ans = new string[n];
        for (int i = 0; i < n; i++)
        {
            if (cmd[i] == 0 && a == 1 && b == 1)
            {
                if (i != n - 1)
                {
                    if (cmd[i + 1] == 1) { a--; b++; ans[i] = "B"; }
                    else if (cmd[i + 1] == 2) { a++; b--; ans[i] = "A"; }
                    else
                    {
                        if (a > b) { a--; b++; ans[i] = "B"; }
                        else { a++; b--; ans[i] = "A"; }
                    }
                }
                else
                {
                    if (a > b) { a--; b++; ans[i] = "B"; }
                    else { a++; b--; ans[i] = "A"; }
                }
            }
            else if (cmd[i] == 1 && b == 1 && c == 1)
            {
                if (i != n - 1)
                {
                    if (cmd[i + 1] == 2) { c++; b--; ans[i] = "C"; }
                    else if (cmd[i + 1] == 0) { c--; b++; ans[i] = "B"; }
                    else
                    {
                        if (b > c) { b--; c++; ans[i] = "C"; }
                        else { b++; c--; ans[i] = "B"; }
                    }
                }
                else
                {
                    if (b > c) { b--; c++; ans[i] = "C"; }
                    else { b++; c--; ans[i] = "B"; }
                }
            }
            else if (cmd[i] == 2 && c == 1 && a == 1)
            {
                if (i != n - 1)
                {
                    if (cmd[i + 1] == 0) { a++; c--; ans[i] = "A"; }
                    else if (cmd[i + 1] == 1) { a--; c++; ans[i] = "C"; }
                    else
                    {
                        if (c > a) { c--; a++; ans[i] = "A"; }
                        else { c++; a--; ans[i] = "C"; }
                    }
                }
                else
                {
                    if (c > a) { c--; a++; ans[i] = "A"; }
                    else { c++; a--; ans[i] = "C"; }
                }
            }
            else if (cmd[i] == 0 && a == 0) { a++; b--; ans[i] = "A"; }
            else if (cmd[i] == 2 && a == 0 ) { a++; c--; ans[i] = "A"; }
            else if (cmd[i] == 1 && b == 0 ) { b++; c--; ans[i] = "B"; }
            else if (cmd[i] == 0 && b == 0 ) { b++; a--; ans[i] = "B"; }
            else if (cmd[i] == 2 && c == 0 ) { c++; a--; ans[i] = "C"; }
            else { c++; b--; ans[i] = "C"; }
        }
        Console.WriteLine("Yes");
        Console.WriteLine(string.Join("\n", ans));
    }

    static void abc1(int n, int a, int b, int c, int[] cmd)
    {
        var ans = new string[n];
        for (int i = 0; i < n; i++)
        {
            if (cmd[i] == 0 && a == 0 && b == 0) { Console.WriteLine("No"); return; }
            if (cmd[i] == 1 && b == 0 && c == 0) { Console.WriteLine("No"); return; }
            if (cmd[i] == 2 && c == 0 && a == 0) { Console.WriteLine("No"); return; }
            if (cmd[i] == 0)
            {
                if (a == 0) { a++; b--; ans[i] = "A"; }
                else { a--; b++; ans[i] = "B"; }
            }
            else if (cmd[i] == 1)
            {
                if (b == 0) { b++; c--; ans[i] = "B"; }
                else { b--; c++; ans[i] = "C"; }
            }
            else
            {
                if (c == 0) { c++; a--; ans[i] = "C"; }
                else { c--; a++; ans[i] = "A"; }
            }
        }
        Console.WriteLine("Yes");
        Console.WriteLine(string.Join("\n", ans));
    }
    static void getAns(int n, int a, int b, int c, int[] cmd)
    {
        if (a + b + c == 0) { Console.WriteLine("No"); return; }
        if (a + b + c == 1) { abc1(n, a, b, c, cmd); return; }
        if (a == 0 && b == 0 && cmd[0] == 0) { Console.WriteLine("No"); return; }
        if (b == 0 && c == 0 && cmd[0] == 1) { Console.WriteLine("No"); return; }
        if (c == 0 && a == 0 && cmd[0] == 2) { Console.WriteLine("No"); return; }
        if (a + b + c == 2) { abc2(n, a, b, c, cmd); return; }
        abc3(n, a, b, c, cmd);
    }
}


Measured memory_bytes: 21924