import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StreamTokenizer;
import java.util.ArrayList;
import java.util.Scanner;

/**
 * @author iceewei
 * @Description: 大整数算法 acwing-ycx
 * @date 2025/1/17
 */
public class Main {

    public static void main(String[] args) throws IOException {
        String[] s = doInput();
        ArrayList<Integer> A = new ArrayList<>();
        ArrayList<Integer> B = new ArrayList<>();
        for (int i = s[0].length() - 1; i >= 0 ; i--) A.add(s[0].charAt(i) - '0');
        int b = 0;
        for (int i = 0; i < s[1].length() ; i++) {
            b = b*10 + s[1].charAt(i) - '0';
            B.add(s[1].charAt(i) - '0');
        }
        ArrayList<Integer> C = multiply(A, b);
        for (int i = C.size() - 1; i >= 0; i--) {
            if (i == C.size() - 1 && C.get(i) == -1) System.out.print("-");
            else System.out.print(C.get(i));
        }
    }

    // 关键是将b看作一个整体，多位的b当做一个单位的数一样来做
    private static ArrayList<Integer> multiply(ArrayList<Integer> A, int b) {
        ArrayList<Integer> C = new ArrayList<>();
        int t = 0;
        for (int i = 0; i < A.size(); i++) {
            t += A.get(i) * b;
            C.add(t % 10);
            t = t / 10;
        }
        while (t > 0) {
            C.add(t % 10);
            t /= 10;
        }
        while (C.size() > 1 && C.get(C.size() - 1) == 0) C.remove(C.size() - 1);
        return C;
    }

    private static String[] doInput() throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StreamTokenizer st = new StreamTokenizer(br);
        st.ordinaryChars(0, 255);
        st.wordChars(33, 255);
        String[] s = new String[2];
        int counter = 0;
        while (st.nextToken()!= StreamTokenizer.TT_EOF) {
            if (st.ttype == StreamTokenizer.TT_WORD) {
                s[counter++] = st.sval;
            }
        }
        return s;
    }
}