#define FOURMB_INT4 1048576 //Used for 4byte ints
#define FOURMB_INT2 2097152 //Used for 2byte ints
#define TWOMB_INT4 524288   //Used for 4byte ints
#define TWOMB_INT2 1048576  //Used for 2byte ints
#define ONEMB_INT4 262144   //Used for 4byte ints
#define ONEMB_INT2 524288   //Used for 2byte ints