PAD
#define PAD(howmany, with) do { \
#define PAD(howmany, with) do { \
#define PAD 64*1024
#undef PAD
#define PAD(len) \
#undef PAD
#define PAD(len) \
#undef PAD
#define PAD(len) \
#undef PAD
#define PAD(len) \
#undef PAD
#define PAD(len) \
PAD = -7,