#include using namespace std; #define rep(i,n) for(ll i=0;i=0;i--) #define lper(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define all(x) (x).begin(),(x).end() #define CST(x) cout<; using vvl=vector>; using pl=pair; template inline bool chmin(T& a, T b){ if(a>b){a = b;return true;}return false;} template inline bool chmax(T& a, T b){ if(a>N; int ans1=0,ans2=0; while(N--){ int T;string S;cin>>T>>S; ans1+=min(T*12/1000,(int)S.size()); ans2+=S.size()-min(T*12/1000,(int)S.size()); } cout<