#include <stdio.h>
#define MAXLINE 1000

int ggetline(char line[], int maxline){
  int c, i;
  for(i=0; i<maxline-1 && (c=getchar()) != EOF && c != '\n'; i++){
    line[i]=c;
  }
  line[i]='\0';
  return i;
}

void reverse(char s[]){
  int i;
  for(i=0; s[i] != '\0'; i++){
    ;
  }
  while(i>=0){
    putchar(s[i]);
    i--;
  }
  putchar('\n');
}

int main(){
  char line[MAXLINE];
  int len;
  while((len=ggetline(line, MAXLINE))>0){
    reverse(line);
  }
  return 0;
}