#include <iostream>

#define MAX_SIZE 100001

int main() {
	char buffer[MAX_SIZE];
	while(fgets(buffer, MAX_SIZE, stdin)) {
		char *p=buffer;
		while(*p) ++p;
		--p;
		do {
			printf("%c", *--p);
		}while(p!=buffer);
		printf("\n");
	}
	return 0;
}