//~ while (clock()<=69*CLOCKS_PER_SEC)
//~ #pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("O3")
#pragma GCC optimize("-Ofast", "-funroll-all-loops", "-ffast-math")
//~ #pragma GCC target ("avx2")
//~ #pragma GCC
// target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <algorithm>
#include <cassert>
#include <chrono>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <iostream>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <vector>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
using LL = long long;
#define eps 1e-8
#define fi first
#define se second
#define eb emplace_back
#define SZ(a) int(a.size())
#define ALL(x) (x).begin(), (x).end()
#define trav(a, x) for (auto &a : x)
#define LOG(FMT...) fprintf(stderr, FMT)
#define close \
    std::ios::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr)
#define FOR(i, x, y) for (LL i = (x), _##i = (y); i < _##i; ++i)
#define FORD(i, x, y) for (LL i = (x), _##i = (y); i > _##i; --i)
#define SORT_UNIQUE(c)         \
    (sort(c.begin(), c.end()), \
     c.resize(distance(c.begin(), unique(c.begin(), c.end()))))
#define CASET    \
    int ___T;    \
    cin >> ___T; \
    for (int __CS = 1; __CS <= ___T; __CS++)
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef pair<int, int> pii;
mt19937 dlsrand(random_device{}());
mt19937 mrand(std::chrono::system_clock::now().time_since_epoch().count());
int rnd(int x) { return mrand() % x; }
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
LL bin(LL x, LL n, LL MOD) {
    LL ret = MOD != 1;
    for (x %= MOD; n; n >>= 1, x = x * x % MOD)
        if (n & 1) ret = ret * x % MOD;
    return ret;
}
inline LL get_inv(LL x, LL p) { return bin(x, p - 2, p); }
const double PI = acos(-1.0);
constexpr int maxn = 1e6 + 10;
constexpr int mod = 1e9 + 7;
constexpr int INF = 0x3f3f3f3f;
constexpr ll linf = 0x3f3f3f3f3f3f3f3f;
constexpr ull base = 2333, P_1 = 19260811, P_2 = 999998639;
void add(int &a, int b) {
    a += b;
    if (a >= mod) a -= mod;
}
void dec(int &a, int b) {
    a -= b;
    if (a < 0) a += mod;
}
int n, a, b, c;
string s[maxn], ans[maxn];

void dfs(int now, int a, int b, int c) {
    if (now > n) {
        cout << "Yes\n";
        for (int i = 1; i <= n; i++) {
            // cout << "i == " << i << "   ";
            cout << ans[i] << endl;
            // exit(0);
        }
        exit(0);
    }
    if (s[now] == "AB") {
        if (b > 0) ans[now] = 'A', dfs(now + 1, a + 1, b - 1, c);
        if (a > 0) ans[now] = 'B', dfs(now + 1, a - 1, b + 1, c);
    } else if (s[now] == "AC") {
        if (c > 0) ans[now] = 'A', dfs(now + 1, a + 1, b, c - 1);
        if (a > 0) ans[now] = 'C', dfs(now + 1, a - 1, b, c + 1);
    } else {
        if (c > 0) ans[now] = 'B', dfs(now + 1, a, b + 1, c - 1);
        if (b > 0) ans[now] = 'C', dfs(now + 1, a, b - 1, c + 1);
    }
}

int main() {
    cin >> n >> a >> b >> c;
    for (int i = 1; i <= n; i++) {
        cin >> s[i];
    }
    dfs(1, a, b, c);
    return cout << "No" << endl, 0;
}

Measured memory_bytes: 56272