#include #define rep(i,n) for(int (i)=0;(i)<(n);(i)++) using namespace std; typedef long long ll; int main(){ int n,t; cin >> n; string s; ll ans = 0; ll sum = 0; rep(i,n){ cin >> t >> s; int a = 12*t/1000; sum += s.size(); if(s.size()