//test1.in Matrix A:
1.00            -6.00
34.00           -1644.00
803.00          -42258.00
15524.00        -831864.00
285061.00       -15355806.00
5153062.00      -278046852.00

//test2.in Matrix B:
-1875.00      17976.00        485714.00        -501810.00
5370.00       409584.00      -973084.00        559740.00
291495.00     9193128.00     -64643018.00      55199850.00
6351060.00    175638624.00   -1430791544.00    1249618200.00
120491745.00  3213894936.00  -27252104806.00   23932788870.00
2200175790.00 58033455312.00 -498213904852.00  438253167540.00

 //this is my coding.

 #include<iostream>
 #include<fstream>
 #include<iomanip>
 #include<math.h>

 #define M 6
 #define N 2
 #define x 6
 #define y 4
 #define MAX 100

using namespace std;
void main()
{
double A[MAX][MAX], B[MAX][MAX];
int i, j;
ifstream ifp;
ifp.open("test1.in", ios::in);
cout << "Matrix A" << setw(40) << endl;
for(i=0;i<M;i++)
{
    for(j=0;j<N;j++)
    {
        ifp >> A[i][j];
        cout << setw(20) << A[i][j];
    }
    cout << endl;
}
ifp.close();

ifp.open("test2.in", ios::in);
cout << "Matrix B" << setw(40) << endl;
for(i=0;i<x;i++)
{
    for(j=0;j<y;j++)
    {
        ifp >> B[i][j];
        cout << setw(20) << B[i][j];
    }
}