sprintf (buf, "%dh%s%dm", secs / 3600, space, (secs / 60) % 60);
else if (secs < 100 * 86400)
sprintf (buf, "%dd%s%dh", secs / 86400, space, (secs / 3600) % 60);
sprintf (buf, "%dh%s%dm", secs / 3600, space, (secs / 60) % 60);
else if (secs < 100 * 86400)
sprintf (buf, "%dd%s%dh", secs / 86400, space, (secs / 3600) % 60);