#include <stdio.h>
#include <string.h>

void main(void) {
	char sample[100] = "a";
	scanf("%s",&sample);
	char changeStr[100000] = "b";
	scanf("%s",&changeStr);
	
	for(int i = 0 ; i < (int)strlen(changeStr) ; i++){
		if(changeStr[i]-'0' >= 0 && changeStr[i]-'0' <= 9){
			printf("%c",sample[changeStr[i]-'0']);
		}else{
			printf("%c",changeStr[i]);
		}
	}
}