#include<iostream> #include<cstdio> //scanf()\printf() #include<cstring> #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int x,y,a,d; cin>>a>>x>>y; if(x<a<y){ cout<<"yes"; } else{ cout<<"no"; } return 0; }