B.cpp

/*****                                            
                                                     __Bismillahir Rahmanir Rahim__
                                               American International University Bangladesh (AIUB) 
                                                          Hadiur Rahman Nabil
                                                                 
                                                               
                                                          
*****/
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef vector <int> vi;


#define pb push_back
#define mp make_pair
#define gcd(a,b) __gcd(a,b)
#define endl "\n"

const int mod = 1e9 + 7;
const double PI = 3.1415926535897932384626;
const int mod_2 = 998244353;
const int MAX=100005;


int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    #ifndef ONLINE_JUDGE
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    #endif

string s,s1,s2,s3,t;
cin>>s1>>s2>>s3>>t;
for(int i=0;i<t.length();i++)
{
    if(t[i]=='1')
    {
        s+=s1;
    }
    else if(t[i]=='2')
    {
        s+=s2;
    }
    else
    {
        s+=s3;
    }
}
cout<<s<<"\n";



}


/*

*/