#include #define syosu(x) fixed< P; typedef pair pdd; typedef pair pll; typedef vector vi; typedef vector vvi; typedef vector vd; typedef vector vvd; typedef vector vl; typedef vector vvl; typedef vector vs; typedef vector

vp; typedef vector vvp; typedef vector vpll; typedef pair pip; typedef vector vip; const int inf=1<<30; const ll INF=1ll<<60; const double pi=acos(-1); const double eps=1e-11; const ll mod=1e9+7; const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1}; const int M=30000; int n; vp a; int main(){ cin>>n; a=vp(n); for(int i=0;i>A>>B; a[i]={A-M*B,i+1}; } sort(a.rbegin(),a.rend()); if(a[0].first*6>=M*100){ cout<<"YES"<