#include #include #include #include #include #include #include #include #include #include #include #define rep(i,j,k) for(int i=(int)j;i<(int)k;i++) #define Sort(x) sort((x).begin(),(x).end()) #define all(x) (x).begin(),(x).end() #define fi first #define se second #define vi vector #define INF (int)1e9 #define INFL 1e18 #define MOD 1e9+7 #define pb push_back #define MP make_pair typedef long long int ll; typedef std::pair pii; int dx[4]={0,1,0,-1},dy[4]={1,0,-1,0}; int temp[3]={1,5,10}; using namespace std; int main() { int n; cin>>n; vector g(n),d(n); rep(i,0,n)cin>>g[i]>>d[i]; int x=30000*100; rep(i,0,n){ int xx=6*(g[i]-30000*d[i]); if(xx>=x){ cout<<"YES"<