#include <iostream>
#include<cstdio>
#include<cstring>
#include<cstdlib>
using namespace std;
int cifre[10],dim;
int n,c1,c2;
int main()
{
   // freopen("date.in","r",stdin);
    //freopen("date.out","w",stdout);

scanf("%d %d %d",&n,&c1,&c2);

while( n+c1+c2>0 )
{
if(n<10){

    if(n==c1)cout<<c2<<"\n"; else cout<<n<<"\n";
}
else{
int dim=0;
do{ dim++; cifre[dim]=n%10; n=n/10;  }while(n>0);

for(int i=1; i<=dim; i++)if(cifre[i]==c1)cifre[i]=c2;
int au=dim; while(cifre[au]==0 && au>1)au--;
for(int i=au; i>=1; i--)printf("%d",cifre[i]);
printf("\n");



}
cin>>n>>c1>>c2;
}

    return 0;
}