#include <iostream>
#include <vector>
#include <algorithm>
#include <deque>
#include <queue>
#include <string>
#include <iomanip>
#include <set>
#include <unordered_set>
#include <map>
#include <unordered_map>
#include <utility>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif
using namespace std;
using ll=long long;

int main(){
  ll N;
  cin>>N;
  vector<ll>A(N);
  for(int i=0;i<N;i++){
    cin>>A[i];
  }
  ll cnt=0;
  vector<ll> B;
  B.reserve(N);
  for(int i=0;i<N;i++){
    if(A[i]==0){
      cnt++;
    }else{
      B.emplace_back(A[i]);
    }
  }
  sort(B.begin(),B.end());
  ll sa=1000000000000000LL;
  for(int i=0;i<(int)B.size()-1;i++){
    sa=min(sa,B[i+1]-B[i]);
  }
  if(sa==0){
    for(ll i:B){
      if(i!=B[0]){
        cout<<"No"<<endl;
        return 0;
      }
    }
    cout<<"Yes"<<endl;
    return 0;
  }
  ll must=0;
  for(int i=0;i<(int)B.size()-1;i++){
    if((B[i+1]-B[i])%sa){
      cout<<"No"<<endl;
      return 0;
    }
    must+=(B[i+1]-B[i])/sa-1;
  }
  //cerr<<sa<<" "<<must<<" "<<cnt<<endl;
  if(must>cnt){
    cout<<"No"<<endl;
  }else{
    cout<<"Yes"<<endl;
  }
}