#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> P;
typedef pair<int,int> Pi;
#define rep(i,n) for(ll i=0;i<n;i++)
#define FOR(i,a,b) for(ll i=a;i<b;i++)
#define fi first
#define se second
#define endl "\n"

template<typename T> inline bool chmax(T &a, T b){if(a<b){a=b;return true;}return false;}
template<typename T> inline bool chmin(T &a, T b){if(a>b){a=b;return true;}return false;}
template<typename T> ostream& operator<<(ostream& s,const complex<T>& d) {return s<<"("<<d.real()<<", "<<d.imag()<< ")";}
template<typename T1, typename T2> ostream& operator<<(ostream& s,const pair<T1,T2>& d) {return s<<"("<<d.first<<", "<<d.second<<")";}
template<typename T> ostream& operator<<(ostream& s, const vector<T>& d){int len=d.size();rep(i,len){s<<d[i];if(i<len-1) s<<" ";}return s;}
template<typename T> ostream& operator<<(ostream& s,const vector<vector<T>>& d){int len=d.size();rep(i,len){s<<d[i]<<endl;}return s;}
template<typename T> ostream& operator<<(ostream& s,const set<T>& v){s<<"{ ";for(auto itr=v.begin();itr!=v.end();++itr) {if (itr!=v.begin()) {s<< ", ";}s<<(*itr);}s<<" }";return s;}
template<typename T1, typename T2> ostream& operator<<(ostream& s,const map<T1,T2>& m){s<<"{"<<endl;for(auto itr=m.begin();itr!=m.end();++itr){s<<" "<<(*itr).first<<" : "<<(*itr).second<<endl;}s<<"}"<<endl;return s;}

const ll mod=1e9+7;
const ll inf=1e17;
const int INF=1e9;
const double PI=acos(-1);
const double EPS=1e-10;

int main(){
	cin.tie(0);ios::sync_with_stdio(false);
	ll n,a,b,c;
	cin>>n>>a>>b>>c;
	vector<ll> g={a,b,c};
	sort(begin(g),end(g));
	vector<string> s(n);
	rep(i,n){
		cin>>s[i];
	}
	auto no=[](){
		cout<<"No"<<endl;
		return 0;
	};
	vector<char> ans(n);
	bool flag=true;
	if(g[0]==0 && g[1]==0){
		if(g[2]==0){
            no();
            return 0;
        }
		if(a==0 && b==0 && s[0]=="AB"){
            no();
            return 0;
        }
		if(b==0 && c==0 && s[0]=="BC"){
            no();
            return 0;
        }
		if(a==0 && c==0 && s[0]=="AC"){
            no();
            return 0;
        }
        if(g[2]==1){
            rep(i,n){
                if(s[i]=="AB"){
                    if(a==0 && b==0){
                        no();
                        return 0;
                    }else{
                        if(a>b){
                            ans[i]='B';
                            a--;
                            b++;
                        }else{
                            ans[i]='A';
                            a++;
                            b--;
                        }
                    }
                }
                if(s[i]=="BC"){
                    if(c==0 && b==0){
                        no();
                        return 0;
                    }else{
                        if(c>b){
                            ans[i]='B';
                            c--;
                            b++;
                        }else{
                            ans[i]='C';
                            c++;
                            b--;
                        }
                    }
                }
                if(s[i]=="AC"){
                    if(a==0 && c==0){
                        no();
                        return 0;
                    }else{
                        if(a>c){
                            ans[i]='C';
                            a--;
                            c++;
                        }else{
                            ans[i]='A';
                            a++;
                            c--;
                        }
                    }
                }
            }
            cout<<"Yes"<<endl;
            cout<<ans<<endl;
            return 0;
        }
	}
	cout<<"Yes"<<endl;
	rep(i,n){
		if(s[i]=="AB"){
            if(a==0 && b==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(a==1 && b==1){
                if(i+1<n && s[i+1]=="BC"){
                    cout<<'B'<<endl;
                    b++;
                    a--;
                    continue;
                }
                if(i+1<n && s[i+1]=="AC"){
                    cout<<'A'<<endl;
                    a++;
                    b--;
                    continue;
                }
            }
			if(a>b){
				cout<<'B'<<endl;
				a--,b++;
			}else{
				cout<<'A'<<endl;
				a++,b--;
			}
		}
		if(s[i]=="BC"){
            if(b==0 && c==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(c==1 && b==1){
                if(i+1<n && s[i+1]=="AC"){
                    cout<<'C'<<endl;
                    c++;
                    b--;
                    continue;
                }
                if(i+1<n && s[i+1]=="AB"){
                    cout<<'B'<<endl;
                    b++;
                    c--;
                    continue;
                }
            }
			if(b>c){
				cout<<'C'<<endl;
				b--,c++;
			}else{
				cout<<'B'<<endl;
				b++,c--;
			}
		}
		if(s[i]=="AC"){ 
            if(a==0 && c==0){
                cout<<"No"<<endl;
                return 0;
            }
            if(a==1 && c==1){
                if(i+1<n && s[i+1]=="BC"){
                    cout<<'C'<<endl;
                    c++;
                    a--;
                    continue;
                }
                if(i+1<n && s[i+1]=="AB"){
                    cout<<'A'<<endl;
                    a++;
                    c--;
                    continue;
                }
            }
			if(a>c){
				cout<<'C'<<endl;
				a--,c++;
			}else{
				cout<<'A'<<endl;
				a++,c--;
			}
		}
	}
}


Measured memory_bytes: 6668