using System;
using System.Linq;
using System.Text;
using CompLib.Util;

public class Program
{
    int N, A, B, C;
    string[] S;
    char[] Ans;
    bool Flag;
    long Sum;
    public void Solve()
    {
        var sc = new Scanner();
        N = sc.NextInt();
        A = sc.NextInt();
        B = sc.NextInt();
        C = sc.NextInt();
        S = new string[N];
        for (int i = 0; i < N; i++)
        {
            S[i] = sc.Next();
        }
        Sum = A + B + C;
        Flag = false;

        Ans = new char[N];
        Search(0, A, B);
        if (!Flag)
        {
            Console.WriteLine("No");
        }
    }

    public void Search(int i, long a, long b)
    {
        if (Flag) return;
        if (i >= N)
        {
            Console.WriteLine("Yes");
            Console.WriteLine(string.Join("\n", Ans));
            Flag = true;
            return;
        }
        long c = Sum - a - b;
        if (S[i] == "AB")
        {
            if (a == 0 && b == 0) return;
            if (a > b)
            {
                Ans[i] = 'B';
                Search(i + 1, a - 1, b + 1);
                if (Flag) return;
                Ans[i] = 'A';
                if (b > 0) Search(i + 1, a + 1, b - 1);
            }
            else
            {
                Ans[i] = 'A';
                Search(i + 1, a + 1, b - 1);
                if (Flag) return;
                Ans[i] = 'B';
                if (a > 0) Search(i + 1, a - 1, b + 1);
            }
        }
        if (S[i] == "AC")
        {
            if (a == 0 && c == 0) return;
            if (a > c)
            {
                Ans[i] = 'C';
                Search(i + 1, a - 1, b);
                if (Flag) return;
                Ans[i] = 'A';
                if (c > 0) Search(i + 1, a + 1, b);
            }
            else
            {
                Ans[i] = 'A';
                Search(i + 1, a + 1, b);
                if (Flag) return;
                Ans[i] = 'C';
                if (a > 0) Search(i + 1, a - 1, b);
            }
        }
        if (S[i] == "BC")
        {
            if (b == 0 && c == 0) return;
            if (b > c)
            {
                Ans[i] = 'C';
                Search(i + 1, a, b - 1);
                if (Flag) return;
                Ans[i] = 'B';
                if (c > 0) Search(i + 1, a, b + 1);
            }
            else
            {
                Ans[i] = 'B';
                Search(i + 1, a, b + 1);
                if (Flag) return;
                Ans[i] = 'C';
                if (b > 0) Search(i + 1, a, b - 1);
            }
        }
    }

    public static void Main(string[] args) => new Program().Solve();
}

namespace CompLib.Util
{
    using System;
    using System.Linq;

    class Scanner
    {
        private string[] _line;
        private int _index;
        private const char Separator = ' ';

        public Scanner()
        {
            _line = new string[0];
            _index = 0;
        }

        public string Next()
        {
            while (_index >= _line.Length)
            {
                _line = Console.ReadLine().Split(Separator);
                _index = 0;
            }

            return _line[_index++];
        }

        public int NextInt() => int.Parse(Next());
        public long NextLong() => long.Parse(Next());
        public double NextDouble() => double.Parse(Next());
        public decimal NextDecimal() => decimal.Parse(Next());
        public char NextChar() => Next()[0];
        public char[] NextCharArray() => Next().ToCharArray();

        public string[] Array()
        {
            _line = Console.ReadLine().Split(Separator);
            _index = _line.Length;
            return _line;
        }

        public int[] IntArray() => Array().Select(int.Parse).ToArray();
        public long[] LongArray() => Array().Select(long.Parse).ToArray();
        public double[] DoubleArray() => Array().Select(double.Parse).ToArray();
        public decimal[] DecimalArray() => Array().Select(decimal.Parse).ToArray();
    }
}


Measured memory_bytes: 45772