Simple question for a Quick answer

So I'm trying to write a program that reads an input file and calculates the sum of numbers.

My output should look like this:
inData Sum of numbers
2301 6
3302 8
1234567890 45

But its turning out like this:

inData Sum of numbers
2301 1
1
4
6
3302 8
8
11
14
1234567890 14
23
31
38
44
49
53
56
58
59

So it keeps adding every itineration instead of stopping and going the next input number
Here is my code:
#include <fstream>
#include <iostream>
#include <string>
#include <iomanip>
#include <cmath>

using namespace std;

int main()
{
ofstream fout;
ifstream indata;
fout.open(" .out");
indata.open(" .dat");
if(!indata)
{
fout<<"File does not exist";
exit(1);
}
int number,
sumDigits=0,
digit;


while (indata>>number)
{
fout<<number<<setw(6);

while (number>0)
{
digit=number%10;
sumDigits = sumDigits + digit;
number=number/10;
fout<<sumDigits<<endl;
}}
return 0;
}
Here

use code tag and employ better indentation.

Make sure you use code tags whenever you want to preserve indentation. Otherwise multiple spaces will be replaced with one and things won't line up etc. . This makes it difficult to understand:

Quote:

---

inData Sum of numbers
2301 6
3302 8
1234567890 45

---

Because what you actually typed was something like:

Code:

---

inData      Sum of numbers
2301        6
3302        8
1234567890  45

---

One other thing I noticed - if your input looks like:

Code:

---

2301

---

then you can't use cin >> number because then two thousand, three hundred and one will be stored in number instead of 2.