#include<fstream>
#include<iostream>

using namespace std;
ifstream f("date.in");
ofstream g("date.out");
void solve(int n,int c1,int c2)
{

        int cf,put,sol=0;

        put=1;
    while(n)
    {
        cf=n%10;
        if(cf==c1)
            cf=c2;

        sol=sol+cf*put;
        put*=10;
        n/=10;
    }
    cout<<sol<<'\n';
}
int main()
{
    int n,c1,c2,ok=1;

    while(ok==1)
    {
        cin>>n>>c1>>c2;
        if(n!=0 || c1!=0 || c2!=0)
        {
        solve(n,c1,c2);
        }
        else ok=0;
    }
    return 0;
}