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codeforces-infinite sequence 

#include<iostream>
using namespace std;
int main()
{
 long long a,b,c;
 cin>>a>>b>>c;
 if(c==0)
 { 
  if(a==b)
   cout<<"YES";
  else
   cout<<"NO";
 }
 else
 {
  if((b-a)%c==0 and (b-a)/c>=0)
  {
   cout<<"YES";
  }
  else
  {
   cout<<"NO";
  }
 }
 return 0;
}

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