#include <iostream>
using namespace std;

int main() {
	long n;
	short int a,b;
	cin>>n>>a>>b;

	long inv=0;
	while(n!=0&&a>-1&&a<11&&b>-1&&b<11){
		int divs=0;
		while (n!=0){
			if(n%10!=a)
				inv=inv*10+n%10;
			else
				inv=inv*10+b;
			n/=10;
			divs++;
		}
		n=0;
		for (int i=1;i<=divs;i++){
			n=n*10+inv%10;
			inv/=10;
		}

		cout<<n<<endl;
		cin>>n>>a>>b;
	}
	return 0;
}