class Matrix { 
    double[] data;
    int      colons, rows;

    double getAt(int i, int j) { 
	return data[i*colons + j];
    }

    void putAt(int i, int j, double val) { 
        data[i*colons + j] = val;
    }

    int getColons() { return colons; }    

    int getRows() { return rows; }    

    Matrix(int colons, int rows) { 
	this.colons = colons;
	this.rows = rows;
	data = new double[colons*rows];
    }
}


public class Test {     
    static final int interations = 100000;

    public static void main(String[] args) { 
	Matrix a, b, c;
	a = new Matrix(10,10);
	b = new Matrix(10,10);
	c = new Matrix(10,10);

	long start = System.currentTimeMillis();

	for (int n = 0; n < interations; n++) { 
	    for (int i = 0; i < a.getColons(); i++) { 
		for (int j = 0; j < a.getRows(); j++) { 
		    double sum = 0.0;
		    for (int k = 0; k < b.getColons(); k++) { 
			sum += b.getAt(j, k)*c.getAt(k, i);
		    }
		    a.putAt(i, j, sum);
		}
	    }
	}
	System.out.println("Elapsed time for " + interations + " is " +  
			   + (System.currentTimeMillis() - start));
    }
}