#include <stdio.h>
void reverse_string(char *str) {
// Your logic here
// Finding the size of the string
int size = 0;
while(str[size] != 0){
size++;
}
char temp;
// Swap till the middle
for(int i = 0; i < size/2; i++){
temp = str[i];
str[i] = str[size - 1 - i];
str[size - 1 - i] = temp;
}
}
int main() {
char str[101];
fgets(str, sizeof(str), stdin);
// Remove newline
int i = 0;
while (str[i] != '\0') {
if (str[i] == '\n') {
str[i] = '\0';
break;
}
i++;
}
reverse_string(str);
printf("%s", str);
return 0;
}