#include #include #include using namespace std; using ll = long long; int main(){ int n,m; cin >> n >> m; int cnt=0; for(int i=0;i> s >> r; if(r<1200)continue; for(int i=0;i<4;i++){ if(s[i]=='x'){ cnt++; break; } } } cout << cnt << endl; return 0; }