#include<stdio.h>
#include<string.h>
int main()
{
	char str[100]={},substr[100]={};
	scanf("%s",str);
	scanf("%s",substr);
	char *loc = strstr(str,substr);
	int position = loc-str;
	int substr_len = strlen(substr),whole_len=strlen(str);
	char left[100]={},right[100]={};
	//get left hand side to the axis
	strncpy(left,str,position);
	//get right hand side to the axis
	strncpy(right,str+position+substr_len,whole_len-substr_len-position);
	for(int j=strlen(right)-1;j>=0;--j)
	{
		printf("%c",right[j]);
	}
	printf("%s",substr);
	for(int j=strlen(left)-1;j>=0;--j)
	{
		printf("%c",left[j]);
	}
	printf("\n");
}