#include<iostream> using namespace std; int main() { /** char a; cin>>a; if(a =='Y'){ cout<<'A'; }else { if(a =='Z'){ cout<<'B'; }else{ cout<<char(a+2); } } **/ int a,b,c; cin>>a>>b>>c; if(-2^16<=a, b, c<2^16) { cout<<"YES"; } else { cout<<"NO"; } return 0; }