import java.util.*;
import java.lang.*;
import java.io.*;
public class Main{
  public static void main(String agrs[])
  {
    Scanner in = new Scanner(System.in);
    PrintWriter out = new PrintWriter(System.out);
    double a = in.nextDouble();
    double b = in.nextDouble();
    out.println((long)(a * b));
    out.close();
  }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz