Why the 5 random characters?

[ErinCorona]

Can anyone tell me why my output for this program looks like this: (The 5 characters underlined are the extra ones at the top.)

8
85
3
361235
85321
3862663
6t426 
2222222222222222222222222
7777777777777777777777777
99999999999999999999999993
9999999999999999999999999
4444444444444444444444444
999999999999999

Instead of like this:

8
3
36123
85321
3862663
67426
2222222222222222222222222
7777777777777777777777777
9999999999999999999999999
9999999999999999999999999
4444444444444444444444444
999999999999999

It's so close, but I can't figure out where I've gone wrong in my code. Here's the code:

//***********************************************************************************
//This is a program that will add two numbers and print out those numbers as well
//as their sum.  The program should handle up to 25 digit integer numbers.  The
//input is found in BigNumberV2.txt.  The format should be one number per line, and
//should be all right hand justified, and labeled, without showing any leading zeros.
//***********************************************************************************

#include <iostream>    //Header files
#include <fstream>
#include <cmath>

using namespace std;

//File descriptors
ifstream infile;
ofstream outfile;

//Prototypes

int main()
{
    infile.open("BigNumbersV2.txt"); //Open text file to read from
    outfile.open("answers.out");    //Open textfile to write to
    if (!infile) //If input file did not open correctly
    {
        cout << "Error opening input file." << endl; //Display error message
        return 0; //Quit
    }
    if (!outfile) //If outfile does not open
    {
        cout << "Error opening output file." << endl; //Display error message
        return 0;  //Quit
    }
    char chary[25];   //Declare array for reading in numbers by character
    int num1ary[25]; //Declare array for storing number 1
    int num2ary[25]; //Declare array for storing number 2
    int sumary[25];  //Declare array for storing sum
    int i = 0;  //Declare and initialize an array position holder
    char ch;    //Declare variable for reading in each character from infile

    //Read-in the number
    infile.get(ch);        //Read in first character
    cout << ch << endl;    //Test value of ch
    outfile << ch << endl; //Echo

    //While read-in has not reached the end of
    while (!infile.eof())
    {
        //To read in each whole number per line
        while ( ch != '\n')    //While read-in value is not a new line character
        {
            chary[i] = ch;     //Assign value of ch to current pos in array
            cout << chary[i];  //Display current value in array to test
            outfile << chary[i];//Echo
            i = i + 1;         //Increment counter
            infile.get(ch);    //Read in next character
        }
        i = i + 1;          //Increment counter
        infile.get(ch);     //Read in next character
        cout << chary[i] << endl;   //Display current value to test
        outfile << chary[i] << endl;//Echo
    }
    return 0;
}

[ErinCorona]

Lol. Thanks for all the help. I've figured out how to fix everything except that funny character that changes every time....Please someone help me figure this out, so I can move on...
I changed my code:

#include <iostream>    //Header files
#include <fstream>
#include <cmath>

using namespace std;

//File descriptors
ifstream infile;
ofstream outfile;

//Prototypes

int main()
{
    infile.open("BigNumbersV2.txt"); //Open text file to read from
    outfile.open("answers.out");    //Open textfile to write to
    if (!infile) //If input file did not open correctly
    {
        cout << "Error opening input file." << endl; //Display error message
        return 0; //Quit
    }
    if (!outfile) //If outfile does not open
    {
        cout << "Error opening output file." << endl; //Display error message
        return 0;  //Quit
    }
    char chary[25];   //Declare array for reading in numbers by character
    /*int num1ary[25]; //Declare array for storing number 1
    int num2ary[25]; //Declare array for storing number 2
    int sumary[25];  //Declare array for storing sum*/
    int i = 0;  //Declare and initialize an array position holder
    char ch;    //Declare variable for reading in each character from infile

    //Read-in the numbers
    infile.get(ch);        //Read in first character
    //While read-in has not reached the end of file
    while (!infile.eof())
    {

        //To read in each whole number per line
        while ( ch != '\n')    //While read-in value is not a new line character
        {
            chary[i] = ch;     //Assign value of ch to current pos in array
            cout << chary[i];  //Display current value in array to test
            outfile << chary[i];//Echo
            i = i + 1;         //Increment counter
            infile.get(ch);    //Read in next character
        }
        //infile.get(ch);     //Read in next character
        i = i + 1;
        cout << endl;
        outfile << endl;
        infile.get(ch);
    }
return 0;
}

And now my output looks like this:

8
3
36123
85321
3862663
6z426                              <---------This pesky z still changes every time program runs.               
2222222222222222222222222              And it just needs to be a 7, and then I'm golden. 
7777777777777777777777777
9999999999999999999999999
9999999999999999999999999
4444444444444444444444444
999999999999999