bool DBG = false;
// #pragma GCC optimize("Ofast")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
// #pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
//#include <boost/multiprecision/cpp_dec_float.hpp>
//#include <boost/multiprecision/cpp_int.hpp>
using namespace std;
using ll = long long;
using ld = long double;
//using i128 = __int128_t;
//using bint = boost::multiprecision::cpp_int
//using d1024 = boost::multiprecision::number<mp::cpp_dec_float<1024>>;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define IFOR(i,a,b) for(int i=(b-1);i>=(a);--i)
#define RPT(i,a,b) for(int i=(a);i<((a)+(b));++i)
#define IRPT(i,a,b) for(int i=((a)+(b)-1);i>=(a);--i)
#define ALL(x) x.begin(),x.end()
#define RALL(x) x.rbegin(),x.rend()
#define fs first
#define sd second
#define couts(x) cout << (x) << (" ")
#define coutn(x) cout << (x) << ("\n")
#define ncouts(x) numout(x),outst[outst_N++] = ' '
#define ncoutn(x) numout(x),outst[outst_N++] = '\n'
#define scouts(x) strout(x),outst[outst_N++] = ' '
#define scoutn(x) strout(x),outst[outst_N++] = '\n'
#define dcouts(x) if(DBG) couts(x)
#define dcoutn(x) if(DBG) coutn(x)
#define endl "\n"
#define psb push_back
#define ppb pop_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
#define LBIT(x,a) (((x)>>(a))&1LL)
#define IBIT(x,a) (((x)>>(a))&1)
#define BCOUNT(x) (__builtin_popcount(x))
template<typename T> std::istream &operator>>(std::istream &is, std::vector<T> &vec){ for (auto &v : vec) is >> v; return is; }
template<typename T1, typename T2> std::istream &operator>>(std::istream &is, std::pair<T1,T2> &p){is >> p.first >> p.second; return is; }
template<typename T> std::ostream &operator<<(std::ostream &os, const std::vector<T> &vec){ os << "["; for (auto v : vec) os << v << ","; os << "]"; return os; }
template<typename T> std::ostream &operator<<(std::ostream &os, const std::deque<T> &vec){ os << "deque["; for (auto v : vec) os << v << ","; os << "]"; return os; }
template<typename T> std::ostream &operator<<(std::ostream &os, const std::set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> std::ostream &operator<<(std::ostream &os, const std::unordered_set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> std::ostream &operator<<(std::ostream &os, const std::multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T> std::ostream &operator<<(std::ostream &os, const std::unordered_multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; }
template<typename T1, typename T2> std::ostream &operator<<(std::ostream &os, const std::pair<T1, T2> &pa){ os << "(" << pa.first << "," << pa.second << ")"; return os; }
template<typename TK, typename TV> std::ostream &operator<<(std::ostream &os, const std::map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; }
template<typename TK, typename TV> std::ostream &operator<<(std::ostream &os, const std::unordered_map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; }

template<class T> using V = vector<T>;
template<class T> using V2 = V<V<T>>;
template<class T> using V3 = V<V2<T>>;
template<class T> using V4 = V<V3<T>>;


char outst[20'000'000]; int outst_N = 0;
char outst_tmp[200];
template<class NUM >
void numout(NUM n){
  if(n<0) { n*=-1; outst[outst_N++] = '-';}
  if(n==0){ outst[outst_N++] = '0'; return;}
  int cnt = 0;
  while(n>0){
    outst_tmp[cnt++] = '0' + (n % 10);
    n /= 10;
  }
  IFOR(i,0,cnt){
    outst[outst_N++] = outst_tmp[i];
  }
}
void strout(std::string s){
  for(auto x: s){
    outst[outst_N++] = x;
  }
}




constexpr ll LINF = 1LL << 55;
constexpr int IINF = 1 << 28;
constexpr ll mod = 1'000'000'007;


void solve6(){
  int n; ll t[3]; cin >> n >> t[0] >> t[1] >> t[2];
  V<int> s(n+1); 
  FOR(i,0,n){
    string sd; cin >> sd;
    if(sd=="AB") s[i] = 3;
    else if(sd=="BC") s[i] = 6;
    else s[i] = 5;
  }
  scoutn("Yes");
  if(t[0]+t[1]+t[2]==0) {coutn("No"); return;}
  else if(t[0]+t[1]+t[2]==1){
    FOR(i,0,n){
      int w[3];w[0]=-1, w[1]=-1, w[2]=-1;
      FOR(k,0,3){ if( (s[i]>>k)&1 ){if(w[0]>=0) w[1] = k; else w[0] = k;} else{w[2] = k;} }
      if(  t[ w[0] ]==0 && t[ w[1] ]==0){ coutn("No"); return;}
      //if(DBG){ ncouts(w[0]);ncouts(w[1]); ncouts(w[2]);} if(DBG){ ncouts(t[0]);ncouts(t[1]); ncoutn(t[2]);}
      if(t[w[0]])swap(w[0], w[1]);
      string ss=""; t[w[0]]++; t[w[1]]--;
      ss += (char)('A' +  ((t[w[0]])?(w[0]):(w[1]))   );
      scoutn( ss );   //if(DBG){ ncouts(w[0]);ncouts(w[1]); ncouts(w[2]);} if(DBG){ ncouts(t[0]);ncouts(t[1]); ncoutn(t[2]);}
    }
  }
  else{
    if(  (t[0]==0 && t[1]==0 && s[0]==3)
       ||(t[1]==0 && t[2]==0 && s[0]==6)
       ||(t[2]==0 && t[0]==0 && s[0]==5)
      ){
      coutn("No");
      return;
    }
    FOR(i,0,n){
      int w[3];w[0]=-1, w[1]=-1, w[2]=-1;
      FOR(k,0,3){ if( (s[i]>>k)&1 ){if(w[0]>=0) w[1] = k; else w[0] = k;} else{w[2] = k;} }
      if( t[ w[0] ] * t[ w[1] ] == 0 ){
        if( t[w[0]]+t[w[1]]==0){ coutn("No"); return;}
        if( t[w[0]]){swap(w[0], w[1]);}
        string ss=""; t[w[0]]++; t[ w[1] ]--;
        ss += (char)('A' +  w[0]   );
        scoutn( ss );   //if(DBG){ ncouts(t[0]);ncouts(t[1]); ncoutn(t[2]);}
      }
      else if(t[0]+t[1]+t[2]==2 && t[w[0]]==1 && t[w[1]]==1 && i+1<n && s[i]!=s[i+1]){
        if( (s[i+1]>>w[1]) & 1 ) swap(w[0], w[1]);
        string ss=""; t[w[0]]++; t[ w[1] ]--;
        ss += (char)('A' +  w[0]   );
        scoutn( ss );  //if(DBG){ ncouts(t[0]);ncouts(t[1]); ncoutn(t[2]);}
      }
      else{
        if(t[w[0]]>t[w[1]]) swap(w[0], w[1] );
        string ss=""; t[ w[0] ]++; t[ w[1] ]--;
        ss += (char)('A' +  w[0]   );
        scoutn( ss );  //if(DBG){ ncouts(t[0]);ncouts(t[1]); ncoutn(t[2]);}
      }
    }
    
  }
  printf("%s", outst);
}



void solve(){
  solve6();
}

int main(void){
  //std::cout << std::fixed << std::setprecision(20);
  cin.tie(0);
  //ios::sync_with_stdio(false);
  solve();
  
  return 0;
}



Measured memory_bytes: 3900