#include <cstdio>
#include <cstring>

#define L 105

char s1[L], s2[L];
int k1, k2, zeros, a, b;

int main () {
    freopen("product.in", "r", stdin);
    freopen("product.out","w", stdout);
    int k1, k2, k;
    scanf("%s1 ", s1);
    scanf("%s2 ", s2);
    k1 = (strlen (s1)) - 1;
    k2 = (strlen (s2)) - 1;

    while (s1[k1] == '0') k1--, zeros++;
    while (s2[k2] == '0') k2--, zeros++;

    for (int i = 0; i <= k1; i++)
             a = a * 10 + (s1[i] - '0');

        for (int i = 0; i <= k2; i++)
             b = b * 10 + (s2[i] - '0');

    printf("%d", a * b);
    for (int i = 0; i < zeros; i++ )
             printf("0");

    return 0;
}