#include <stdio.h>
#include <math.h>
#include <string.h>

int main()
{
	char a[10000] = {0}, b[10000] = {0}, * p = a, * q = b;
	long long x = 0, y = 0,c = 0,d = 0,m,n;
	gets_s(a);
	gets_s(b);
	x = strlen(a);
	y = strlen(b);
	m = x; n = y;
	for (long long i = 0; i < x; ++i) {
		c += pow(10, m - 1)*(a[i] - '0');
		--m;
	}
	for (long long j = 0; j < y; ++j) {
		d += pow(10, n - 1)*(b[j] - '0');
		--n;
	}
	printf("%lld",c*d);
	return 0;
}