Integer Atoms
Integer atoms differ from string atoms in the following ways: 
	- The values of integer atoms are in the range 0x0001 through 0xBFFF (MAXINTATOM – 1). 
- The string representation of an integer atom is #dddd, where the values represented by dddd are decimal digits. Leading zeros are ignored. 
- There is no reference count or storage overhead associated with an integer atom.