#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define fi first
#define se second
#define rep(i,a,b) for(int i=a;i<=b;i++)
#define repi(i,a,b) for(int i=a;i>=b;i--)
#define vi vector<int>
#define vvi vector<vector<int> >
#define vll vector<long long int>
#define vvll vector<vector<long long> >
#define vb vector<bool>
#define pii pair<int,int>
#define tiii tuple<int,int,int>
#define mod 1000000007
#define mem1(x) memset(x,1,sizeof(x))
#define mem0(x) memset(x,0,sizeof(x))
#define memn1(x) memset(x,-1,sizeof(x))
#define fastio ios_base::sync_with_stdio(false),cin.tie(NULL)
#define inf 1e17+1
template<class x> x gcd(x a, x b) {return (b == 0) ? a : gcd(b, a % b);}
template<class x> x powerm(x a, x n) {if (n == 0)return 1; x b = powerm(a, n / 2) % mod; return (n & 1) ? ((b * b) % mod * a) % mod : (b * b) % mod;}
const int cnst = 1000001;

void solve() {
	string a, b;
	cin >> a >> b;
	for (char &i : b) {
		if (i < 'a') {
			i = a[i - '0'];
		}
	}
	cout << b << endl;

}

int main() {
#ifndef ONLINE_JUDGE
	//for reading input from input.txt
	freopen("input.txt", "r", stdin);
	//for writing output in output.txt
	freopen("output.txt", "w", stdout);
#endif
	fastio;
	int t = 1;
	// cin >> t;
	while (t--) {
		solve();
	}
}