#include<iostream>
#include<string.h>
#include<stdio.h>
#include<algorithm>
#include<map>
#include<vector>
#include<queue>
#include<stack>
#include<math.h>
#include<set>
#define int long long int
#define INF 0x3f3f3f3f
#define unint unsigned long long
using namespace std;
int a,b,c;
vector<int> V;
string x,y;
signed main()
{
	while(cin>>a>>b)
	{
		V.clear();
		if(a<-9223372036854775807&&b<0)
		{
			a=-a;
			b=-b;
			c=a/b;
			while(c)
			{
				int tmp=c%10;
				V.push_back(-tmp);
				c/=10;
			}
			for(int i=V.size()-1;i>=0;i--)cout<<V[i];
			continue;
		}
		int x=0;
		if(a<0)
		a=-a,x++;
		if(b<0)
		b=-b,x++;
		int s=a/b;
		if(x==1)
		{
			if(a%b==0)
			cout<<-s<<endl;
			else
			cout<<-(s+1)<<endl;
		}
		else
		{	
			cout<<s<<endl;
		}

	}
	return 0;
}