#include <cmath>
#include<iostream>
using namespace std;
int main() {
int X,Y;
cin >> X >> Y;
int loser=0;
if (X>Y) {
Y+=3;
if (Y>X) {
std::cout<<"Yes"<<endl;
}
else {
std::cout<<"No"<<endl;
}
}
else{
X+=3;
if (X>Y) {
std::cout<<"Yes"<<endl;
}
else {
std::cout<<"No"<<endl;
}
}
return 0;
}
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