Can anyone help me to fix this? The ouput outcome aren't same as the datafile.

#include <iostream>
#include <fstream>
using namespace std;
int main()
{
  ofstream myfile("Matrix.dat",ios::app);
  int A[100][100], B[100][100], row1, co11, row2, co12, i, j, k;
  cout << "Enter no. of rows for matrix A: ";
  cin >>  row1;
  cout << "Enter no. of columns for matrix A: ";
  cin >> co11;
  cout << "Enter no. columns for matrix B: ";
  cin >>  row2;
  cout << "Enter no. of rows for matrix B: ";
  cin >> co12 ;
  
  myfile << row1 <<endl;
  myfile << co11 <<endl;
  myfile << row2 <<endl;
  myfile << co12 <<endl;
  myfile << endl;
  
  while (co11!=row2)
  {
    cout << "Sorry! Column of matric A is not equal to row of matrix B.";
    cout << "Please enter rows and columns for matrix A: ";
    cin >> row1 >> co11; 
    cout << "Please enter rows and column for the maxtrix B: ";
    cin >> row2 >> co12; }
    
    
  //read matrices
  //Storing elements of matrix A 
  cout <<  endl << "Enter elements of matrix A:" << endl;
  for(i = 0; i < row1; ++i)
  for(j = 0; j < co11; ++j)
  {
    cout << "Enter element A" << i + 1 << j + 1 << " : ";
    cin >> A[i][j];
    
  }
  
  
  //Storing elements of matrix B
  cout << endl << "Enter elements of matrix B:" << endl;
  for(i=0; i < row2; ++i)
  for(j=0; j < co12; ++j)
  {
    cout << "Enter element B" << i + 1 << j + 1 << " : ";
    cin >> B[i][j];
    
  
  }
  

  
  //Displaying output of two matrix
  {
  
  cout << " \n Matrix A: \n " << endl;
  for(i = 0; i < row1; ++i)
  {

  for(j = 0; j < co11; ++j)
    cout << A[i][j] << " ";
    cout << endl;
    
    
    myfile << A[i][j] << " ";
    myfile << endl;
    

}
  
  cout << "\n Matrix B: \n " <<endl;
  for(i = 0; i < row2; ++i)
  {
  for(j = 0; j < co12; ++j)
  cout << B[i][j] << " ";
  
  myfile << B[i][j] << " ";
  myfile << endl;
  
}

return 0;

}

}