int matrix[SIZE2][SIZE2] ={
					  { 1, 1, 0, 1, 1 },
					  { 1, 0, 1, 0, 1 },
					  { 0, 1, 1, 1, 0 },
					  { 1, 0, 1, 0, 1 },
					  { 1, 1, 0, 1, 1 } };

				  int mask[SIZE2][SIZE2] = { 0 };
				  bool flag = true;
				  int j = 0, i = 0;
				  for (i = ((SIZE2 - 1) / 2); i >= 0; i--)
				  {
					  mask[i][j++] = 1;
				  }

				  for (i = 0, j = (SIZE2 % 2 == 0 ? SIZE2 / 2 : (SIZE2 - 1) / 2); i <= (SIZE2 / 2) - 1; i++)
				  {
					  mask[i][j++] = 1;
				  }

				  for (j = SIZE2 - 1, i = (SIZE2 % 2 == 0 ? SIZE2 / 2 : (SIZE2 - 1) / 2); i < SIZE2; i++, j--)
				  {
					  mask[i][j] = 1;
				  }

				  for (j = (SIZE2 % 2 == 0 ? (SIZE2 / 2 - 1) : SIZE2 / 2), i = SIZE2 - 1; i >= SIZE2 / 2; i--, j--)
				  {
					  mask[i][j] = 1;
				  }
				  cout << "original diamond: \n";
				  for (i = 0; i < SIZE2; i++)
				  {
					  for (j = 0; j < SIZE2; j++)
					  cout << (mask[i][j] ? "0 " : "  ");
					  cout << endl;
				  }
				  cout << "your matrix : \n";
				  for (i = 0; i < SIZE2; i++)
				  {
					  for (j = 0; j < SIZE2; j++)
						  cout << (matrix[i][j] ? "  " : "0 ");
					      cout << endl;
				  }
				  for (i = 0; i < SIZE2; i++)
				  {
					  for (j = 0; j < SIZE2; j++)
					  if (mask[i][j] == 1 && matrix[i][j] != 0)
						  flag = false;
				  }
				  cout << (flag ? "\nCompatible Diamond\n" : "INVALID Diamond") << endl;
				  break;
				  system("pause");
				  system("cls");