what is a long long int in c

1#include <stdio.h>
2#include <stdbool.h>
3#include <stdlib.h>
4
5#define FailedToEducate    101
6#define Success            400
7
8int main(void) {
9	/* 
10    	A long int is:
11        	32-bit compiler: 
12            	MIN: -2,147,483,648
13            	MAX: 2,147,483,647
14                unsigned MAX: 4,294,967,295
15            64-bit compiler: 
16            	MIN: -9,223,372,036,854,775,808
17            	MAX: 9,223,372,036,854,775,807
18                unsigned MAX: 18,446,744,073,709,551,615
19        Therefore...a long int will either be
20        -2,147,483,648 and 2,147,483,647 for a 32-bit compiler
21        or -9,223,372,036,854,775,808 and 
22        9,223,372,036,854,775,807 for a 64-bit compiler, 
23        whilst a long long int will just be 
24        -9,223,372,036,854,775,808 and 
25        9,223,372,036,854,775,807
26        
27        I hope this made sense!
28    */
29  
30  	bool userUnderstands=true;
31  
32  	if(userUnderstands) {
33    	exit(Success);
34    } else {
35    	exit(FailedToEducate);
36    }
37}