#include <fstream>

using namespace std;

int n,n2,nn,numar,c1,c2,sol[16];

int main()
{
    do
    {
      scanf("%d%d%d",&n,&c1,&c2);
      if (n==0 && c1==0 && c2==0)break;
      int p=1;n2=n;nn=0;
      while (n)
       {
          if (n%10==c1)
             nn=nn+c2*p;
          else
             nn=nn+(n%10)*p;
          p*=10;
          n/=10;
       }
       sol[++numar]=nn;
    }
    while (n2>0 || c1>0 || c2>0);
    for (int i=1;i<=numar;i++)printf ("%d\n",sol[i]);
}