❄🕈⚐ ☹✋☠☜ 💧⚐☹🕆❄✋⚐☠

#include<bits/stdc++.h>
using namespace std;int x,y;int main(){cin>>x>>y;if(x1&&y1){cout<<"yes";}else if(x1&&y-1){cout<<"yes";}else if(x==-1&&y==-1){cout<<"yes";}else if(x0&&y0){cout<<"yes";}else if(x==-1&&y==1){cout<<"yes";}else{cout<<"no";}return 0;}