Using visualstudios C++

why wont the even and odd portion of my code run ?

#include "stdafx.h"

#include

using namespace std;

int main()

{

int somenumber;

int evennum, oddnum;

//newnumber;

cout << " Please enter some four digit integer that does not contain zeros." << endl;

cin >> somenumber;

while (somenumber <= 1000)

{

cout << " Invalid response. I will keep adding to your number until a new acceptable number is reached," << endl;

somenumber++;

cout << " The new number is :" << somenumber << endl;

}

if (somenumber > 1000 && somenumber < 9999)

{

int firstdigit = somenumber / 1000;

somenumber %= 1000;

int seconddigit = somenumber / 100;

somenumber %= 100;

int thirddigit = somenumber / 10;

int fourthdigit = somenumber % 10;

int newfirst = fourthdigit * 1000;

int newsecond = thirddigit * 100;

int newthird = seconddigit * 10;

int newfourth = firstdigit;

int reversednum = newfirst + newsecond + newthird + newfourth;

cout << "The new number is " << reversednum << endl;

}

if (somenumber % 2 == 0)

cin >> evennum;

if (somenumber % 1 == 0)

cin >> oddnum;

cout << oddnum << endl;

cout << evennum << endl;

//cout << "Would you like to input a new number? (Y/N)" << endl;

//cin >> response;

//f ( response == 'Y' || response =='y')

system("pause");

return 0;

}