// ex_ch6_13.c
#include <stdio.h>
#include <string.h>
#include <stdbool.h>

const int LEN = 255;

int main(void)
{
	char line[LEN];
	int counter = 0;

	while (true)
	{
		scanf("%c", &line[counter]);
		counter++;

		if (line[counter - 1] == '\n')
		{
			// maximal index: split off the last three characters
			int max_index = strlen(line) - 3;

			for (int i = max_index; i >= 0; i--)
			{
				printf("%c", line[i]);
			}
			printf("\n");
			counter = 0;
		}
	}
	return 0;
}