//#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; typedef signed long long ll; #define pp(...) (void)printf(__VA_ARGS__) #define For(x,to) for(x=0;x<(to);x++) #define ForAuto(x,arr) for(auto& x:arr) #define ForBeginEnd(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define All(a) (a.begin()),(a.end()) #define Zeros(a) memset(a,0,sizeof(a)) #define Minus(a) memset(a,0xff,sizeof(a)) #define PI 3.14159265 #define EPS (1e-10) #define EPS_eq(a,b) (abs((a)-(b)) < EPS) #pragma GCC diagnostic ignored "-Wconversion" //#define int long long //#define INF 1000*1000 int dxy[] = {0, 1, 0, -1, 0}; typedef pair P; void pp_int(int x){ printf("%d\n", x); }; int i,j,k; ll M = 100000009; //ios::sync_with_stdio(false); //------------------------------------------------- signed main() { int N;cin>>N; int ok=0,ng=0; while(N--){ int t; string s; cin>>t>>s; int pos = 12 * t / 1000; if (pos >= s.size()) { ok += s.size(); } else { ok += pos; ng += s.size() - pos; } } cout<