#include <bits/stdc++.h>
#define pii pair<int,int>
#define pb emplace_back
#define mp make_pair
#define ll long long
#define oo 1<<18;
using namespace std;
int n,c1,c2,sol,cif,e;
int main()
{
    while(cin>>n>>c1>>c2)
    {
        sol=0;
        e=1;
        if(!n&&!c1&&!c2)
            return 0;
        while(n)
        {
            cif=n%10;n/=10;
            if(cif==c1)
                cif=c2;
            sol=cif*e+sol;
            e*=10;
        }
        cout<<sol<<'\n';
    }
    return 0;
}