#include<iostream>
#include<string>
#include<vector>

using namespace std;
int main()
{
	int n, c1, c2, aux,inv;
	int c[100],k,linie,col;
	int numere[100][100];

	linie = 0;
	
	scanf("%d %d %d", &n, &c1, &c2);

	while (!(n == 0 && c1 == 0 && c2 == 0))
	{
		k = 0;
		while (n > 0)
		{
			if (n % 10 == c1)
			{
				c[k] = c2;
				k++;
				n = n / 10;
			}
			else
			{
				c[k] =  n % 10;
				k++;
				n = n / 10;
			}
		}
		col = 0;
		for (int i = k-1; i >=0; i--)
		{
			if (i == k - 1 && c[i] == 0)
			{
				continue;
			}
			numere[linie][col] = c[i];
			col++;
		}
		linie++;
		scanf("%d %d %d", &n, &c1, &c2);
	}

	for (int i = 0; i < linie; i++)
	{
		for (int j = 0; numere[i][j] >= 0 && numere[i][j] <= 9; j++)
		{
			printf("%d", numere[i][j]);
		}
		printf("\n");
	}

	system("PAUSE");
	return 0;
}