/*
    Author:zeke

    pass System Test!
    GET AC!!
*/
#include <algorithm>
#include <bitset>
#include <cassert>
#include <cmath>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <utility>
#include <vector>
using ll = long long;
using ld = long double;
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define all(x) (x).begin(), (x).end()
#define rep3(var, min, max) for (ll(var) = (min); (var) < (max); ++(var))
#define repi3(var, min, max) for (ll(var) = (max)-1; (var) + 1 > (min); --(var))
#define Mp(a, b) make_pair((a), (b))
#define F first
#define S second
#define Icin(s) \
    ll(s);      \
    cin >> (s);
#define Scin(s) \
    ll(s);      \
    cin >> (s);
template <class T>
bool chmax(T& a, const T& b) {
    if (a < b) {
        a = b;
        return 1;
    }
    return 0;
}
template <class T>
bool chmin(T& a, const T& b) {
    if (b < a) {
        a = b;
        return 1;
    }
    return 0;
}
typedef pair<ll, ll> P;
typedef vector<ll> V;
typedef vector<V> VV;
typedef vector<P> VP;
ll mod = 1e9 + 7;
ll MOD = 1e9 + 7;
ll INF = 1e18;
// cout << "Case #" << index << " :IMPOSSIBLE";
int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(10);
    ll n,a,b,c;
    cin>>n>>a>>b>>c;
    vector<string> s(n);
    rep(i,n)cin>>s[i];
    vector<char> log_;
    rep(i,n){
       // cout<<a<<" "<<b<<" "<<c<<endl;
       if(i==n-1){
           if(s[i]=="AB"){
            if(a==0&&b==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(a<b){
                log_.push_back('A');
                b--;
                a++;
            }else{
                log_.push_back('B');
                b++;
                a--;
            }
        }else if(s[i]=="BC"){
            if(c==0&&b==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(b<c){
                log_.push_back('B');
                b++;
                c--;
            }else{
                log_.push_back('C');
                c++;
                b--;
            }
        }else{
            if(a==0&&c==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(a<c){
                log_.push_back('A');
                a++;
                c--;
            }else{
                log_.push_back('C');
                c++;
                a--;
            }
        }
        continue;
       }
        if(s[i]=="AB"){
            if(a==0&&b==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(s[i+1]=="BC"&&a!=0){
                log_.push_back('B');
                b++;
                a--;
            }else if(s[i+1]=="AC"&&b!=0){
                log_.push_back('A');
                b--;
                a++;
            }
            else if(a<b){
                log_.push_back('A');
                b--;
                a++;
            }else{
                log_.push_back('B');
                b++;
                a--;
            }
        }else if(s[i]=="BC"){
            if(c==0&&b==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(s[i+1]=="AB"&&c!=0){
                log_.push_back('B');
                b++;
                c--;
            }else if(s[i+1]=="AC"&&b!=0){
                log_.push_back('C');
                b--;
                c++;
            }
            else if(b<c){
                log_.push_back('B');
                b++;
                c--;
            }else{
                log_.push_back('C');
                c++;
                b--;
            }
        }else{
            if(a==0&&c==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(s[i+1]=="AB"&&c!=0){
                log_.push_back('A');
                c--;
                a++;
            }else if(s[i+1]=="BC"&&a!=0){
                log_.push_back('C');
                c++;
                a--;
            }
            else if(a<c){
                log_.push_back('A');
                a++;
                c--;
            }else{
                log_.push_back('C');
                c++;
                a--;
            }
        }
    }
    cout<<"Yes"<<endl;
    for(auto i:log_){
        cout<<i<<endl;
    }
}


Measured memory_bytes: 6692