#include<stdio.h>
#include<string.h>
typedef long long ll;
//using namespace std;
int main()
{
//    ios::sync_with_stdio(false);
//    cin.tie(NULL),cout.tie(NULL);
    //freopen("test.txt","r",stdin);

        //ll ans=1;
        double n,m;
  ll a=0;
        //cin>>n>>m;
        scanf("%lf %lf",&n,&m);
        a=1.0*n*m*1.0;
        printf("%u\n",a);
//cout<<ans<<endl;

    return 0;
}
