void arrange_lksografi(char *string) //aranging the string by lksigrafi order
{
    int i,j,letter_counter=0, maxIndex,temp;
    for(i=0;string[i];i++)
        letter_counter++;
    for (i=1;i<letter_counter;i++)
    {
        maxIndex=0;
        for (j=1;j<=letter_counter-i;j++) /* find max index */
            if (string[j]>string[maxIndex])
                maxIndex=j;
        temp=string[letter_counter-i]; /* swap */
        string[letter_counter-i]=string[maxIndex];
        string[maxIndex]=temp;
    }
    printf("the sorted string:\n"); /* print sort array */
    for (i=0;string[i]!;i++)
        if(string[i]!=' ')printf("%c ", string[i]);
    printf("\n");
}