#include<stdio.h>
#include<string.h>
#define LENGTH 100
void jinwei(int a[])
{
    int i;

    for (i = LENGTH * 2; a[i] == 0 && i != 0; --i);

    for (int j = 0; j <= i; ++j) {
        int sum = a[j];
        int delta = 0;
        a[j] = sum % 10;

        while (sum != 0) {
            sum /= 10;
            ++delta;
            a[j + delta] += sum % 10;
        }
    }
}
void mul(int a[], int b[], int rst[])
{
    int i, j;

    for (i = LENGTH; a[i] == 0 && i != 0; --i);

    for (j = LENGTH; b[j] == 0 && j != 0; --j);

    for (int k = 0; k <= i; ++k) {
        for (int p = 0; p <= j; ++p)
            rst[k + p] += a[k] * b[p];
    }

    jinwei(rst);
}
void print(int a[], int n = LENGTH)
{
    int i;

    for (i = n; a[i] == 0 && i >= 0; --i);

    for (int j = i; j >= 0; --j)
        printf("%d", a[j]);

    printf("\n");
}
int main()
{
    int a[LENGTH + 1], b[LENGTH + 1], rst[LENGTH * 2 + 1];
    char sa[LENGTH + 1], sb[LENGTH + 1];

    while (scanf("%s %s", sa, sb) != EOF) {
        int enda, endb;

        if (sa[0] == '-')enda = 1;
        else enda = 0;

        if (sb[0] == '-') endb = 1;
        else endb = 0;

        for (int i = strlen(sa) - 1, k = 0; i >= enda; ++k, --i)
            a[k] = sa[i] - '0';

        for (int i = strlen(sb) - 1, k = 0; i >= endb; ++k, --i)
            b[k] = sb[i] - '0';

        if (enda != endb) printf("-");

        memset(a, 0, sizeof(a));
        memset(b, 0, sizeof(b));
        memset(rst, 0, sizeof(rst));
        mul(a, b, rst);
        print(a);
        print(b);
        print(rst, 2 * LENGTH);
    }

    return 0;
}