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