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

int main()
{
    int n=1,c1=1,c2=1,i;
    cin>>n>>c1>>c2;
    while(n)
    {
        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--];
        cout<<n<<"\n";
        cin>>n>>c1>>c2;
    }
    return 0;
}