#include <iostream>
#include <fstream>
#define DMAX 6
using namespace std;
int numar[DMAX];
ifstream fin("f.in");
ofstream fout("f.out");

int main()
{
    int n=1,c1=1,c2=1,i;
    fin>>n>>c1>>c2;
    while(1)
    {
        i=0;
        while(n)
        {
            numar[i]=n%10;
            n/=10;
            if(numar[i]==c1)
                numar[i]=c2;
            i++;
        }
        i--;
        while(i>=0)
            n=n*10+numar[i--];
        fout<<n<<"\n";
        for(i=0;i<=DMAX;i++)
            numar[i]=0;
        fin>>n>>c1>>c2;
        if(n==0&&c1==0&&c2==0)
            break;
    }
    return 0;
}