#include<stdio.h>
int main() {
char string[100];
scanf("%s", string);
int len = strlen(string);
for (int i = 0; i < len / 2; i++) {
char c = string[i];
string[i] = string[len - 1 - i];
string[len - 1 - i] = c;
}
printf("%s", string);
return 0;
}



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