#include <iostream>

using namespace std;

int main()
{
    int n,c1,c2;
    int a[20],k=0;
    cin>>n>>c1>>c2;
    while(n!=0 || c1!=0 || c2!=0)
    {
        int p=1,nr=0;
        while(n!=0)
        {
            if(n%10==c1)
                nr=nr+c2*p;
            else
                nr=nr+(n%10)*p;
            n/=10;
            p=p*10;
        }
       a[k++]=nr;
       cin>>n>>c1>>c2;
    }
    for(int i=0;i<k;i++)
        cout<<a[i]<<"\n";
}