gistfile1.c

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

int main() {
	char p[5];
	int i;
	scanf("%s", p);
	printf("%d\n", (int)strlen(p));
	for (i=strlen(p)-1;i>=0;i--) {
		printf("%c", p[i]);
	}
	printf("\n");
}