#include <iostream>
using namespace std;
//ifstream f("date.in");
//ofstream g("date.out");
int a,b,c,k,i,v[15],w[20],nr,cont;
int main()
{
    cin>>a>>b>>c;
    while(a!=0 || b!=0 || c!=0)
    {
        k=0;
        nr=0;
        if (a==0 && b==0) w[++cont]=c;
        else
        {
            while(a)
            {
                v[++k]=a%10;
                a/=10;
            }
            for (i=k;i>=1;i--)
                if (v[i]==b) nr=nr*10+c;
                else nr=nr*10+v[i];
            w[++cont]=nr;
        }
        cin>>a>>b>>c;
    }
    for (i=1;i<=cont;i++)
        cout<<w[i]<<"\n";
}