#include <iostream>
using namespace std;

int n, m, c1, c2, x, p;

int main()
{	cin>>n>>c1>>c2;
	while (n!=0 || c2!=0 || c1!=0)
	{	m=0;
		p=1;
		for (x=n%10; n; n=n/10, p=p*10, x=n%10)
			if (x==c1)
				m=c2*p+m;
			else
				m=x*p+m;
		cout<<m<<'\n';
		cin>>n>>c1>>c2;
	}
    return 0;
}