21 lines
295 B
C++
21 lines
295 B
C++
#include<iostream>
|
|
using namespace std;
|
|
int main()
|
|
{
|
|
char li;
|
|
bool isc[100010]={0};
|
|
int k,x;
|
|
cin>>k>>li>>x;
|
|
isc[k]=1;
|
|
for(int i=0;i*2+1<100010;i++)
|
|
if(isc[i])
|
|
{
|
|
isc[i*2+1]=1;
|
|
if(i*3+1<100010) isc[i*3+1]=1;
|
|
}
|
|
if(isc[x]) cout<<"YES"<<endl;
|
|
else cout<<"NO"<<endl;
|
|
return 0;
|
|
}
|
|
|