#include <stdio.h>
#include <string.h>
int main() {
char input_string[100];
printf("Enter a string: ");
fgets(input_string, 100, stdin);
int length = strlen(input_string) - 1;
int left = 0, right = length - 1;
char encoded_string[100];
for (int i = 0; i < length; i++) {
if (left == right) {
encoded_string[i] = input_string[left];
} else if (i % 2 == 0) {
encoded_string[i] = input_string[left];
left++;
} else {
encoded_string[i] = input_string[right];
right--;
}
}
encoded_string[length] = '\0';
printf("Encoded string: %s\n", encoded_string);
return 0;
}