class Matrix {

    Matrix(String matrixAsString) {
        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
    }

    int[] getRow(int rowNumber) {
        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
    }

    int[] getColumn(int columnNumber) {
        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
    }

    int getRowsCount() {
        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
    }

    int getColumnsCount() {
        throw new UnsupportedOperationException("Delete this statement and write your own implementation.");
    }
}