#include<stdio.h>
#include<string.h>
int main(){
	char s[255];
	gets(s);
	int i;
	for(i=strlen(s)-1;i>=0;i--){	
	printf("%c",s[i]);
}
	return 0;
}
/**************************************************************
	Problem: 1120
	User: admin
	Language: C
	Result: Accepted
	Time:8 ms
	Memory:1036 kb
****************************************************************/