void obr()
{
    int len_str = strlen(str_f);
    int len;
    int k_num = 0;
    int new_razm = 0;
    char *help;
    for (int i = 0; i < num_f; i++)
    {
        len = strlen(txt_f[i]);
        rez_f = (char**)realloc(rez_f, sizeof(char*)*(i++));
        for (int j = 0; j < razm_i_f; j++)
        {
            if (i == index_f[razm_i_f])
            {
                rez_f[i] = (char*)realloc(rez_f[i], sizeof(char)*len_str);
                rez_f[i] = NULL;
                strcpy(rez_f[i], str_f);
                i++;
                rez_f = (char**)realloc(rez_f, sizeof(char*)*(i++));
                rez_f[i] = (char*)realloc(rez_f[i], sizeof(char)*len);
                rez_f[i] = NULL;
                strcpy(rez_f[i], txt_f[i--]);
            }
            else
            {
                int r_word = 0;
                {
                    for (int k = 0; k < len && (r_word != 1); k++)
                    {
                        for (int j = 0; j < r_len; j++)
                        {
                            if (str[i][k] != razd_f[j] && f == 1)
                            {
                                f = 1;
                            }
                            else
                            {
                                f = 0;
                            }
                        }
                        if (f == 1)
                        {
                            r_word++;
                            k_num = i;
                        }
                    }
                }
                if (r_word == 1)
                {
                    new_razm = len - k_num;
                    help = (char*)realloc(help,sizeof(char)*new_razm);
                    help = NULL;
                    for (int k = k_num; k < len; k++)
                    {
                        int h = 0;
                        help[h] = txt[i][k];
                        h++;
                    }
                }
                rez_f[i] = (char*)realloc(rez_f[i], sizeof(char)*new_razm);
                rez_f[i] = NULL;
                strcpy(rez_f[i],help);
            }
        }
    }
}