#include <stdio.h>
#include <string.h>
 
int main() {
    char str[200], temp;
    int i, j, len;
 
    // Input string
    printf("Enter a string: ");
    fgets(str, sizeof(str), stdin);
 
    // Remove newline character if present
    str[strcspn(str, "\n")] = '\0';
 
    len = strlen(str);
 
    // Sort characters using simple bubble sort
    for (i = 0; i < len - 1; i++) {
        for (j = i + 1; j < len; j++) {
            if (str[i] > str[j]) {
                temp = str[i];
                str[i] = str[j];
                str[j] = temp;
            }
        }
    }
 
    printf("String after sorting characters: %s\n", str);
 
    return 0;
}