#include<fstream>
using namespace std;
int main()
{
	ifstream fin("cowmult.in");
	ofstream fout("cowmult.out");
	int n,m,l1,l2;
	int a[11],b[11];
	fin>>n>>m;
	int i=0,j=0;
	while (n>9)
	{
		i++;
		a[i]=n%10;
		n=n/10;
	}
	a[i+1]=n;
	l1=i+1;
	i=0;
	while (m>9)
	{
		i++;
		b[i]=m%10;
		m=m/10;
	}
	b[i+1]=m;
	l2=i+1;
	int sum=0;
	for (i=1;i<=l1;i++)
		for (j=1;j<=l2;j++)
		{
			sum+=a[i]*b[j];
		}
	fout<<sum;
	fin.close();
	fout.close();
	return 0;
}