#include<bits/stdc++.h> using namespace std; int main(){ int lst[27]={2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,87,89,91,97}; cout<<lst[0]<<" "<<lst[1]<<" "<<lst[2]<<" "<<lst[3]<<" "<<lst[4]<<" "<<lst[5]<<" "<<lst[6]<<" "<<lst[7]<<" "<<lst[8]<<" "<<lst[9]<<" "<<lst[10]<<" "<<lst[11]<<" "<<lst[12]<<" "<<lst[13]<<" "<<lst[14]<<" "<<lst[15]<<" "<<lst[16]<<" "<<lst[17]<<" "<<lst[18]<<" "<<lst[19]<<" "<<lst[20]<<" "<<lst[21]<<" "<<lst[22]<<" "<<lst[23]<<" "<<lst[24]<<" "<<lst[25]<<" "<<lst[26]; return 0; }

#include<bits/stdc++.h> using namespace std; int n,x,y,cnt,ans; int main(){ cin>>n; for(int i=1;i<=n;i++){ cin>>x>>y; if(x>=90 && x<=140 && y>=60 && y<=90){ cnt++; }else{ if(cnt>ans) ans=cnt; cnt=0; } } if(cnt>ans) ans=cnt; cout<<ans; return 0; }

#include<bits/stdc++.h> using namespace std; int n,x,y,cnt,ans; int main(){ cin>>n; for(int i=1;i<=n;i++){ cin>>x>>y; if(x>=90 && x<=140 && y>=60 && y<=90){ cnt++; }else{ if(cnt>ans) ans=cnt; cnt=0; } } if(cnt>ans) ans=cnt; cout<<ans; return 0; }