#include <stdio.h>

int main()
{
	int n, c1, c2;
	do
	{
		scanf("%d %d %d",&n,&c1,&c2);
		int aux = 0;
		while (n)
		{
			aux *= 10;
			if (n % 10 == c1)
			{
				aux += c2;
			}
			else
			{
				aux += n % 10;
			}
		}
		n = 0;
		while (aux)
		{
			n *= 10;
			if (aux % 10 == c1)
			{
				n += c2;
			}
			else
			{
				n += aux % 10;
			}
		}
		printf( "%d\n", n);
	} while (n || c1 || c2);
	return 0;
}