I hate "C"

[dcbrown]

The two types are essentially the exact same: both are unsigned, 4 byte numerical variables

Both are signed values unless "unsigned" specifier user.

C18 2.1 Data Types and Limits in user guide:
char : signed 8 bits
int, short : signed 16 bits
short long: signed 24 bits
long : signed 32 bits
float : 32 bits
double : 32 bits

The v2.4 C18 library guide says it supports size qualifiers, so could try %ld instead of %d for the long variables. Drop the int cast if using %ld.