#include<cstdio>

int convert(int n, int a, int b){
	if(!n)
		return 0;
	int x = convert(n/10, a, b);
	if(n%10 == a)
		return x*10+b;
	return x*10+n%10;
}

int main(){
	
	int n,a,b;
	scanf("%d%d%d",&n,&a,&b);
	while(!(!n && !a && !b)){
		printf("%d\n",convert(n,a,b));
		scanf("%d%d%d",&n,&a,&b);
	}
	
	return 0;
}