// #define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define rep(i, n) for (int i = 0; i < n; ++i)
#define REP(i, n) for (int i = 0; i < n; ++i)
#define range(i,a,b) ((a)<=(i) && (i)<(b))
#define debug(x) cout << #x << " = " << (x) << endl;
#define fs first
#define sc second
#define pb push_back
#define eb emplace_back
#define SP << " " <<

typedef long long ll;
typedef pair<ll, ll> P;
typedef tuple<ll, ll, ll> T;
typedef vector<ll> vec;
typedef vector<P> pvec;
typedef vector<vector<ll>> vvec;
typedef vector<vector<P>> pvvec;
typedef priority_queue<ll> PQI;
typedef priority_queue<P> PQP;
typedef priority_queue<ll,vector<ll>,greater<ll>> PQIG;
typedef priority_queue<P,vector<P>,greater<P>> PQPG;

const vector<int> dx = {0, -1, 0, 1, 1, 1, -1, -1};
const vector<int> dy = {1, 0, -1, 0, 1, -1, 1, -1};
constexpr int MOD = (1000000007);
// const int MOD = (998244353);
// const int INF = (1 << 30); // 1073741824
const int INF = (1LL << 60); // 1152921504606846976
const double PI = (3.141592653589794);
const double EPS = (0.0000000001);

template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b; return 1;} return 0;}
template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b; return 1;} return 0;}
template<class T> inline T ceil(T a, T b) {return T((a + b - 1) / b);}
template<class T> inline T round(T a, T b) {return T(a / b);}
template< typename T1, typename T2 > istream &operator>>(istream &is, pair< T1, T2 > &p) { is >> p.first >> p.second; return is; }
template <class T> inline void out(T &a) { bool flag=true; for(auto&x:a){if(flag) {flag=false;} else{ cout << ' '; } cout<<x; } cout << endl; }



//----------------------------------------------------------------
int nmax=200000; // 2*(10^5)
vvec g(nmax);





void solve4ts()
{
    
    int n,a,b,c;
    cin>>n>>a>>b>>c;
    int ng=0;
    vector<string> s(n);
    rep(i,n) cin>>s[i];
    string t="";
    rep(i,n){
        if(s[i]=="AB"){
            if(a<b) a++,b--,t+="A";
            else if(a>b) a--,b++,t+="B";
            else{
                if(i==n-1) a++,b--,t+="A";
                else if(s[i]==s[i+1]) a++,b--,t+="A";
                else{
                    if(s[i+1]=="AC") a++,b--,t+="A";
                    else a--,b++,t+="B"; 
                }
            }
        }
        else if(s[i]=="AC"){
            if(a<c) a++,c--,t+="A";
            else if(a>c) a--,c++,t+="C";
            else{
                if(i==n-1) a++,c--,t+="A";
                else if(s[i]==s[i+1]) a++,c--,t+="A";
                else{
                    if(s[i+1]=="AB") a++,c--,t+="A";
                    else a--,c++,t+="C";
                }
            }
        }
        else if(s[i]=="BC"){
            if(b<c) b++,c--,t+="B";
            else if(b>c) b--,c++,t+="C";
            else{
                if(i==n-1) b++,c--,t+="B";
                else if(s[i]==s[i+1]) b++,c--,t+="B";
                else{
                    if(s[i+1]=="AB") b++,c--,t+="B";
                    else b--,c++,t+="C";
                }
            }
        }
        if(a<0||b<0||c<0) ng++;
    }
    if(ng==0){
        cout<<"Yes"<<endl;
        rep(i,n) cout<<t[i]<<endl;
    }
    else{
        cout<<"No"<<endl;
    }
    
}
//-----------------------------------------------------------------

signed main(){ ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(15);
    int repeat = 1;
    // cin >> repeat;
    while(repeat--) solve4ts();
}

Measured memory_bytes: 11224