#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
using namespace std;
#define sz(s) (int)(s.size())
#define all(v) v.begin(),v.end()
#define clr(d,v) memset(d,v,sizeof(d))
#define ll long long
#define ld long double
#define ull unsigned long long
int dy[] = { 1, -1, 0, 0, -1, 1, 1, -1 };
int dx[] = { 0, 0, 1, -1, 1, -1, 1, -1 };
ll gcd(ll x, ll y) { return(!y) ? x : gcd(y, x % y); }
ll lcm(ll x, ll y) { return((x / gcd(x, y)) * y); }
void file()
{
    std::ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
#ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
#endif
}

int main()
{
    file();
    int len, XOR, OR, AND;
    cin >> len >> AND >> OR >> XOR;
    string a, b, s;
    cin >> a >> b >> s;
    vector<bool>vis(len, false);
    string ans(len, ' ');
    for (int i = 0; i < len; i++)
    {
        if (a[i] == b[i] && a[i] == '0' && s[i] == '1')
        {
            cout << "NO";
            return 0;
        }
        else if (a[i] != b[i] && s[i] == '0')
        {
            if (AND > 0)
            {
                AND--;
                vis[i] = true;
                ans[i] = '&';
            }
            else
            {
                cout << "NO";
                return 0;
            }
        }
        else if (a[i] == b[i] && a[i] == '1' && s[i] == '0')
        {
            if (XOR>0)
            {
                XOR--;
                vis[i] = true;
                ans[i] = '^';
            }
            else
            {
                cout << "NO";
                return 0;
            }
        }
    }
    for (int i = 0; i < len; i++)
    {
        if (vis[i])continue;
        if (a[i] == b[i] && a[i] == s[i] && a[i] == '0')
        {
            if (AND > 0)
            {
                AND--;
                ans[i] = '&';
            }
            else if (OR > 0)
            {
                OR--;
                ans[i] = '|';
            }
            else if (XOR > 0)
            {
                XOR--;
                ans[i] = '^';
            }
            else
            {
                cout << "NO";
                return 0;
            }
        }
        else if (a[i] != b[i] && s[i] == '1')
        {
            if (XOR > 0)
            {
                ans[i] = '^';
                XOR--;

            }
            else if (OR > 0)
            {
                ans[i] = '|';
                OR--;
            }
            else
            {
                cout << "NO";
                return 0;
            }
        }
        else if (a[i] == b[i] && s[i] == '1' && a[i] == '1')
        {
            if (AND>0)
            {
                ans[i] = '&';
                AND--;
            }
            else if (OR > 0)
            {
                ans[i] = '|';
                OR--;
            }
            else
            {
                cout << "NO";
                return 0;
            }
        }
    }
    cout << "YES\n" << ans;
}