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Program almost done, just one problemo

Sunny101 (67)
I have undefined areas in terms of where my room and floor # are. Here's my code:
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#include <iostream>
#include <iomanip>
#include <string>

using namespace std;
void main ()

{
	int MAXRANGE= 999;
	unsigned hotel;
	cout<<"enter a three or four digit number \n";
	cin>> hotel;
	int floor=roomnumber/100;
	int roomnumber=roomnumber%100;
	cout<<"Your floor is"<<floor<<"Press enter to get room number"<<endl;
	cin>>floor;
	cout<<"Your room number is"<<roomnumber<<endl;

	



	
}


How would I define the two to let the user enter any given number, yet let the math work. I am a complete newbie to programming, so please be gentle! The goal of my program is to allow the user to enter a three of four digit number. The numbers would then essentially split and allow the user to see their room number/floor number. For instance 123 would make '1' the floor number and '23' the room number.
Sunny101 (67)
Made additional changes..this should be simple, right?? 
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#include <iostream>
#include <iomanip>
#include <string>
#include <cmath>

using namespace std;
void main ()

{
	int MAXRANGE= 9999;
	unsigned hotel;
	cout<<"enter a three or four digit number \n";
	cin>> hotel;
	int floor ('1');
	int roomnumber ('1');
	floor=roomnumber/100;
	roomnumber=roomnumber%100;
	cout<<"Your floor is"<<floor<<endl;
	cin>>floor;
	cout<<"Press enter to get room number \n";
	cin>>roomnumber;
	cout<<"Your room number is"<<roomnumber<<endl;


It's just spurting out random numbers. There are no errors though!
The output should be something like:
Enter a three or four digit number
4555
Your floor is 4
Press enter to get room number (the enter function isnt working either)
Your room number is 555
Sunny101 (67)
Fixed it, but it only works with four digit numbers. Any clue to why?
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