#include <stdio.h>
#include <stdlib.h>

void swap (char *left, char *right)
{
    char c = *left; *left = *right; *right = c;
}

void rev(char *line)
{
    char *end = line;
    while ((*end != '\r') && (*end != '\n') && (*end != '\0')) end++;
    for (;;) {
      swap(line++, --end);
      if (end - line <= 1) break;
    }
}

int main(int argc, char **argv) {
char line[256];
  for (;;) {
    if (gets(line) == NULL) break;
    rev(line);
    puts(line);
  }
  exit(0);
  return(0);
}