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

// macros
#define pb emplace_back
#define mk make_pair
#define FOR(i, a, b) for(int i=(a);i<(b);++i)
#define rep(i, n) FOR(i, 0, n)
#define rrep(i, n) for(int i=((int)(n)-1);i>=0;i--)
#define irep(itr, st) for(auto itr = (st).begin(); itr != (st).end(); ++itr)
#define irrep(itr, st) for(auto itr = (st).rbegin(); itr != (st).rend(); ++itr)
#define whole(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define bit(n) (1LL<<(n))
#define F first
#define S second
// functions
template <typename T> void unique(T& c){c.erase(std::unique(c.begin(), c.end()), c.end());}
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(a > b){a = b; return 1;} return 0;}
template <typename T> istream &operator>>(istream &is, vector<T> &vec){for(auto &v: vec)is >> v; return is;}
template <typename T> ostream &operator<<(ostream &os, const vector<T>& vec){for(int i = 0; i < vec.size(); i++){ os << vec[i]; if(i + 1 != vec.size())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const set<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const unordered_set<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const multiset<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p){os << "(" << p.first << ", " << p.second << ")"; return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const map<T1, T2> &mp){for(auto itr = mp.begin(); itr != mp.end(); ++itr){ os << "(" << itr->first << ", " << itr->second << ")"; auto titr = itr; if(++titr != mp.end())os << " "; } return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const unordered_map<T1, T2> &mp){for(auto itr = mp.begin(); itr != mp.end(); ++itr){ os << "(" << itr->first << ", " << itr->second << ")"; auto titr = itr; if(++titr != mp.end())os << " "; } return os;}
//  types
using ll = long long int;
using P = pair<int, int>;
// constants
const int inf = 1e9;
const ll linf = 1LL << 60;
const double EPS = 1e-10;
const int mod = 1000000007;
const int dx[4] = {-1, 0, 1, 0};
const int dy[4] = {0, -1, 0, 1};
// io
struct fast_io{
  fast_io(){ios_base::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(20);}
} fast_io_;


int main(int argc, char const* argv[])
{
  int n; cin >> n;
  ll a, b, c; cin >> a >> b >> c;
  vector<string> s(n); cin >> s;
  vector<string> res(n, "");
  rep(i, n){
    if(s[i] == "AB"){
      if(a == 0 && b == 0){
        cout << "No" << endl;
        return 0;
      }else if(a == 0){
        a++;
        b--;
        res[i] = "A";
      }else if(b == 0){
        a--;
        b++;
        res[i] = "B";
      }else{
        if(i + 1 < n && s[i+1] == "BC"){
          a--;
          b++;
          res[i] = "B";
        }else{
          a++;
          b--;
          res[i] = "A";
        }
      }
    }else if(s[i] == "BC"){
      if(b == 0 && c == 0){
        cout << "No" << endl;
        return 0;
      }else if(b == 0){
        b++;
        c--;
        res[i] = "B";
      }else if(c == 0){
        b--;
        c++;
        res[i] = "C";
      }else{
        if(i + 1 < n && s[i+1] == "AC"){
          b--;
          c++;
          res[i] = "C";
        }else{
          c--;
          b++;
          res[i] = "B";
        }
      }
    }else if(s[i] == "AC"){
      if(c == 0 && a == 0){
        cout << "No" << endl;
        return 0;
      }else if(c == 0){
        c++;
        a--;
        res[i] = "C";
      }else if(a == 0){
        c--;
        a++;
        res[i] = "A";
      }else{
        if(i + 1 < n && s[i+1] == "BC"){
          a--;
          c++;
          res[i] = "C";
        }else{
          c--;
          a++;
          res[i] = "A";
        }
      }
    }
  }
  cout << "Yes" << endl;
  rep(i, n)cout << res[i] << endl;
  return 0;
}


Measured memory_bytes: 9536