#include<stdio.h>
#include<string.h>
int main()
{
	int i = 0;
	char arr[10] = { 0 }, ch;
	while (1)
	{
		ch = getchar();
		arr[i] = ch;
		i++;
		if (ch == '\n')
			break;
	}
	int x, y;
	x = strlen(arr);
	for (y = x-2; y >=0; y--)
	{
		printf("%c", arr[y]);
	}
	return 0;
}