#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> PP;
// #define MOD 1000000007
#define MOD 998244353
#define INF 2305843009213693951
#define PI 3.141592653589
#define setdouble setprecision
#define REP(i,n) for(ll i=0;i<(n);++i)
#define OREP(i,n) for(ll i=1;i<=(n);++i)
#define RREP(i,n) for(ll i=(n)-1;i>=0;--i)
#define ORREP(i,n) for(ll i=(n);i>=1;--i)
#define rep(i,a,b) for(ll i=(a);i<=(b);++i)
#define ALL(v) (v).begin(), (v).end()
#define chmin(k,m) k = min(k,m)
#define chmax(k,m) k = max(k,m)
#define GOODBYE do { cout << "-1" << endl; return 0; } while (false)
#define MM <<" "<<
#define Endl endl



int main(void){
    //cin.tie(nullptr);
    //ios::sync_with_stdio(false);

    ll N,M;
    cin >> N >> M;
    ll Ans = 0;
    REP(i,N){
      string S;ll R;
      cin >> S >> R;
      bool c = false;
      REP(j,4){
        if(S[j]!='o'){
          c = true;
        }
      }
      if(R<1200){
        c = false;
      }
      if(c){
        Ans++;
      }
    }
    cout << Ans << endl;

    return 0;
    
}