#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define ld long double
#define pb push_back
#define mp make_pair
const int MAXN=205;
const ll inf = 1e18;
//#define mod 998244353

typedef pair<ll, ll> pi;
ll mod;
ll gc(ll a,ll b)
{
    if(b==0) return a;
    return gc(b,a%b);
}
ll power(ll x, ll y, ll p)
{
    ll res = 1;     // Initialize result

    x = x % p; // Update x if it is more than or
                // equal to p

    if (x == 0) return 0; // In case x is divisible by p;

    while (y > 0)
    {
        // If y is odd, multiply x with result
        if (y & 1)
            res = (res*x) % p;

        // y must be even now
        y = y>>1; // y = y/2
        x = (x*x) % p;
    }
    return res;
}

vector<bool>prime(100005,true);
vector<ll>v;
void sieve(ll n)
{
    prime[1]=false;
   for (int p=2; p*p<=n; p++)
    {
        // If prime[p] is not changed, then it is a prime
        if (prime[p] == true)
        {
            // Update all multiples of p greater than or
            // equal to the square of it
            // numbers which are multiple of p and are
            // less than p^2 are already been marked.
            for (int i=p*p; i<=n; i += p)
                prime[i] = false;
        }
    }

    for(int i=2;i<=n;i++)
    {
        if(prime[i]==true)
            v.push_back(i);
    }
}

int BIT[1000];
void update(int x, int delta)
{
    int n;
      for(; x <= n; x += x&-x)
        BIT[x] += delta;
}
int query(int x)
{
     int sum = 0;
     for(; x > 0; x -= x&-x)
        sum += BIT[x];
     return sum;
}


inline ll add(ll a,ll b) {return ((a%mod)+(b%mod))%mod;}
inline ll sub(ll a,ll b) {return ((a%mod)-(b%mod)+mod)%mod;}
inline ll mul(ll a,ll b) {return ((a%mod)*(b%mod))%mod;}


ll recur(ll idx,ll sum, vector<pair<ll,ll> >& v, vector<ll>& b, vector<ll>& pre, vector<ll>& dp)
{
    if(idx==b.size()) return 0;
    if(dp[idx]!=-1) return dp[idx];
    ll temp=INT_MAX;
    temp=min(temp,recur(idx+1,sum,v,b,pre,dp) + b[idx]);
    for(int i=0;i<v.size();i++)
    {
        ll x=v[i].first;
        ll y=v[i].second;
        if(idx+x-1>=b.size()) continue;
        ll calc= pre[idx+x-1]-pre[idx+y-1];
        temp=min(temp, recur(idx+x, sum,v,b,pre,dp)+ calc);
    }
    dp[idx]=temp;
    return temp;
}


ll find(ll u, vector<ll>& parent)
{
    if(u==parent[u]) return u;
    else return parent[u]=find(parent[u],parent);
}
 void unio(ll u, ll v, vector<ll>& parent, vector<ll>& ran)
{
    u=find(u,parent);
    v=find(v,parent);
    if(u==v) return;
    if(ran[u]>=ran[v])
    {
        parent[v]=u;
        ran[u]+=ran[v];
    }
    else{
        parent[u]=v;
        ran[v]+=ran[u];
    }
}
ll dfs(ll src, ll p, vector<ll>& a, vector<pair<ll,ll> > adj[], vector<ll>& dp)
{
    ll can1=0;
    ll can2=0;
    vector<pair<ll,ll> >:: iterator it;
    for(it=adj[src].begin();it!=adj[src].end();it++)
    {
        if(((*it).first==p)) continue;
        ll st=max(0LL,dfs((*it).first,src,a,adj,dp)- (*it).second);
        if(st>can1)
        {
            can2=can1;
            can1=st;
        }
        else if(st>can2)
        {
            can2=st;
        }
    }
    dp[src]=a[src]+ can1+can2;
    return (max(can1,can2)+ a[src]);
}
/*  FINDING LCS IN (NLOGN) COMPLEXITY
int n;
	cin >> n;
	vector<int> a(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	vector<int> d(n+1, 1000000000);
	for (int i = 0; i < n; i++) {
		*lower_bound(d.begin(), d.end(), a[i]) = a[i];
	}
	for (int i = 0; i <= n; i++) {
		if (d[i] == 1000000000) {
			cout << i << endl;
			return 0;
		}
	}
*/
struct comp1{
    bool operator ()(pair<ll,ll>& temp1, pair<ll,ll>& temp2)
{

}
};
bool comp2(pair<ll,ll>& temp1, pair<ll,ll>& temp2)
{
    return temp1.second<temp2.second;
}

ll getinv(ll temp)
{
    return power(temp,mod-2,mod);

}


int main()
{
ll n,a,b,c;
cin>>n>>a>>b>>c;
map<ll,ll>m;
m[0]=a;
m[1]=b;
m[2]=c;
vector<string>s(n);
for(ll i=0;i<n;i++)
{
    cin>>s[i];
}
ll coun=0;
if(a==0) coun++;
if(b==0) coun++;
if(c==0) coun++;

if(coun==0 || coun==1)
{
    cout<<"Yes"<<endl;
    for(ll i=0;i<n;i++)
    {
        string temp=s[i];
        ll d1=(s[i][0]-'A');
        ll d2=(s[i][1]-'A');
        if(m[d1]==0)
        {
            m[d1]++;
            m[d2]--;
            char c1=(d1+'A');
            cout<<c1<<endl;
        }
        else if(m[d2]==0)
        {
            m[d2]++;
            m[d1]--;
            char c1=(d2+'A');
cout<<c1<<endl;
        }
        else
        {
            if(i<n-1)
            {
                string temp2=s[i+1];
                ll d3=(s[i+1][0]-'A');
                ll d4=(s[i+1][1]-'A');
                if((d3==d1) || (d4==d1))
                {
                m[d1]++;
            m[d2]--;
            char c1=(d1+'A');
cout<<c1<<endl;
                }
                else
                {
                  m[d2]++;
                  m[d1]--;
                 char c1=(d2+'A');
cout<<c1<<endl;
                }
            }
            else
            {
                m[d1]++;
            m[d2]--;
           char c1=(d1+'A');
cout<<c1<<endl;
            }
        }

    }
}
else if(coun==3)
{
    cout<<"No"<<endl;
}
else
{
    bool f=true;
    vector<char>ans;
    for(ll i=0;i<n;i++)
    {
        string temp=s[i];
        ll d1=(s[i][0]-'A');
        ll d2=(s[i][1]-'A');
        if(m[d1]==0 && m[d2]==0)
        {
            f=false;
            break;
        }
        if(m[d1]<m[d2])
        {
            m[d2]--;
            m[d1]++;
            char c1=(d1+'A');
            ans.pb(c1);
        }
        else if(m[d2]<m[d1])
        {
             m[d2]++;
            m[d1]--;
            char c1=(d2+'A');
            ans.pb(c1);
        }
        else
        {
            if(i<n-1)
            {
                string temp2=s[i+1];
                ll d3=(s[i+1][0]-'A');
                ll d4=(s[i+1][1]-'A');
                if((d3==d1) || (d4==d1))
                {
            m[d1]++;
            m[d2]--;
            char c1=(d1+'A');
            ans.pb(c1);
                }
                else
                {
                  m[d2]++;
                  m[d1]--;
                 char c1=(d2+'A');
            ans.pb(c1);
                }
            }
            else
            {
                m[d1]++;
            m[d2]--;
            char c1=(d1+'A');
            ans.pb(c1);
            }
        }
    }
    if(f==false)
        cout<<"No";
    else
    {
        cout<<"Yes"<<endl;
        for(ll i=0;i<n;i++)
            cout<<ans[i]<<endl;

    }
}
}


Measured memory_bytes: 6752