void put_slog_in_file(FILE *f, Slog s)
{
    if(find_slog_in_file(f,s.key) >= 0)
        printf("Slog already in file\n");
    else
    {
        unsigned int prim_key = middle_square_method(s.key);
        fseek(f,prim_key*sizeof(Baket),SEEK_SET);
        Baket b = read_baket(f);
        for(int i = 0; i < BAKETING_FACTOR; i++)
        {
            if(b.slog_u_baketu[i].status == EMPTY)
            {
                b.slog_u_baketu[i] = s;
                fseek(f, -sizeof(Baket), SEEK_CUR);
                write_baket(f,b);
                return;
            }
        }

        position_at_start_of_secondary_zone(f);
        while(free_space_in_baket(b) == 0)
        {
            b = read_baket(f);
        }
        for(int i = 0; i < BAKETING_FACTOR; i++)
        {
            if(b.slog_u_baketu[i].status == EMPTY)
            {
                b.slog_u_baketu[i] = s;
                fseek(f, -sizeof(Baket), SEEK_CUR);
                write_baket(f,b);
                //if baket now full
                if(i == BAKETING_FACTOR - 1)
                {
                    Baket empty_backet = create_empty_baket();
                    write_baket(f,empty_backet);
                }
                return;
            }
        }
    }
}