include <iostream>

include <cmath>

using namespace std;

define ll long long

int main() { ll n,m=0; while(cin>>n && n!=0) { if(n<0) m=m+1; } cout<<m; }

include <iostream>

include <cmath>

using namespace std;

define ll long long

int main () { ll n, m = 0; while (cin >> n && n != 0) { if (n < 0) m = m + 1; } cout << m; }

include <bits/stdc++.h>

using namespace std; int main () { long long n, m = 0; while (cin >> n && n != 0) { if (n < 0) m = m + 1; } cout << m; }

include <iostream> include <cmath> using namespace std;

define ll long long int main() { ll n,m=0; while(cin>>n && n!=0) { if(n<0) m=m+1; } cout<<m; } //siz define bilirsiz besdirin zedden kocurduz