#include <iostream>
#include<fstream>
#include<math.h>
using namespace std;

int main()
{
    ifstream f("input.txt");
    ofstream g("output.txt");
    int n,c1,c2,k=0,uc,v[100],i,c,nr,inv=0,j=0;
    f>>n>>c1>>c2;
    c=n;nr=0;
    while(c)
    {
        uc=c%10;
        if(uc==c1)
        nr=nr*10+c2;
        else
        nr=nr*10+uc;
        c=c/10;
    }
    while(nr)
    {
        uc=nr%10;
        inv=inv*10+uc;
        nr=nr/10;

    }
    g<<inv<<endl;
    while(n!=0 || c1!=0 || c2!=0)
    {
        f>>n>>c1>>c2;
        if(n==0 && c1==0 && c2==0)
            break;
        c=n;inv=0;j=0;
        while(c)
        {
            uc=c%10;
            if(uc==c1 && c2==0)
            {
                nr=nr*10+c2;
                if(c>9)
                j++;
            }
            else
            nr=nr*10+uc;
            c=c/10;
        }
        while(nr)
        {
            uc=nr%10;
            inv=inv*10+uc;
            nr=nr/10;

        }
        if(j==0)
        g<<inv<<endl;
        else
        {
            for(i=1;i<=j;i++)
                inv=inv*10;
            g<<inv<<endl;
        }

    }

    f.close();
    g.close();
    return 0;
}