#include <iostream>
using namespace std;
int v[20],m;

int main()
{
    int i,a,x,y;

    while (1)
    {
        cin>>a>>x>>y;
        if (a==0&&x==0&&y==0)
            break;
        m=0;
        while (a)
        {
            v[++m]=a%10;
            if (v[m]==x) v[m]=y;
            a/=10;
        }
        for (i=m; i>=1; i--)
            a=a*10+v[i];
        cout<<a<<'\n';

    }


    return 0;
}