AtCoder Beginner 181 C No

//thanks God For Every Thing!
//contest link:

#include<bits/stdc++.h>
#include <iostream>
#include <fstream>
#include <string>
#include <algorithm>
#include <cmath>
#include <cstdio>

/*



*/
#define pi           acose(-1)
#define flush        cin.ignore(numeric_limits<streamsize>::max(),'\n');
#define fasterio     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define NL           printf("\n")
#define fin          freopen("int.txt","r",stdin);
#define fout         freopen("out.txt","w",stdout);


using namespace std;

typedef long long int ll;
typedef double dl;

// ---------------------- slove---------------------------//



int main()
{

    //fin
    //fout
    int n;
    scanf("%d",&n);
    int a, b;
    int sum=0, s1=0, s2=0;
    while(n--)
    {
      scanf("%d %d",&a, &b);

      s1=s1+a;
      s2=s2+b;
    }
    if(s1<=s2){
      printf("Yes\n");
    }
    else
    {
      printf("No\n");
    }




}

//author anikaksh;