include <stdio.h>
#define MAX 1000
void reverse(char line[], int len);
int getline(char line[]);
char line[MAX];


int main(){
    int len = 0;
    len = getline(line);
    while (len > 0){
        reverse(line, len - 1);
        len = getline(line);
        printf("%s", line);
    }
}



int getline(char l[])
{
  int i = 0;
  int c = 0;

  for(i = 0; ((c = getchar()) != EOF) && c != '\n' && i
< MAX - 1; ++i)
    l[i] = c;

  if(c == '\n')
    l[i++] = c;

  l[i] = '\0';

  return ++i;
}

void reverse(char s[], int len){
    int temp = 0;
    for (int i =0; i <= len / 2; i++)
        {
        temp = s[len - i];
        s[len - i] = s[i];
        s[i] = temp;
        }
}