#include <bits/stdc++.h>

using namespace std;

typedef long long int ll;
typedef unsigned long long int ull;
typedef vector<int> vii;
typedef vector<ll> vll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

#define pb push_back
#define odd(x) ((x)&1)
#define even(x) (!odd(x))
#define ff it->first
#define ss it->second
#define all(v) (v).begin(),(v).end()
#define rep(i,n) for(auto i=0;i<n;++i)
#define LOOP_IT(it,s) for(auto it=(s).begin();it!=(s).end();++it)
#define FASTIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define TEST_CASE int tc;cin>>tc;while(tc--)


#ifdef LOCAL
#define cerr cout
#else
#endif

#define TRACE

#ifdef TRACE
#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1>
void __f(const char* name, Arg1&& arg1){
    cerr << name << " : " << arg1 << std::endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args){
    const char* comma = strchr(names + 1, ',');cerr.write(names, comma - names) << " : " << arg1<<" | ";__f(comma+1, args...);
}
#else
#define trace(...)
#endif


void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}


template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif


int main(int argv, char* argc[])
{
    FASTIO

    //freopen("in.txt","r",stdin);
    //freopen("out.txt","w",stdout);


    int n,v[3];bool f=1;
    cin>>n>>v[0]>>v[1]>>v[2];
    vector<set<int> > mp(3);
    vector<char> res(n);
    vector<string> s(n);
    rep(i,n)
    {
        cin>>s[i];
        int x=s[i][0]-'A',y=s[i][1]-'A';
        mp[x].insert(i);
        mp[y].insert(i);

    }

    rep(i,n)
    {
        int x=s[i][0]-'A',y=s[i][1]-'A';
        if(v[x]>v[y])
        {
            ++v[y],--v[x];
            res[i] = (s[i][1]);
        }
        else if(v[x]==1&&v[y]==1)
        {
            auto it1 = mp[x].upper_bound(i);
            auto it2 = mp[y].upper_bound(i);
            if((it2==mp[y].end()||*it1<*it2)&&(it1!=mp[x].end()))
            {
                ++v[x],--v[y];
                res[i] = (s[i][0]);
            }
            else
            {
                --v[x],++v[y];
                res[i] = (s[i][1]);
            }
        }
        else
        {
            --v[y],++v[x];
            res[i] = (s[i][0]);
        }


        if(v[x]<0||v[y]<0)
            {f=0;break;}
    }



    if(f)
    {
        cout<<"Yes\n";
        for(auto i:res)
            cout<<i<<"\n";
    }
    else
    {
        cout<<"No\n";
    }

    return 0;
}


Measured memory_bytes: 15848