#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b,c;
   while( scanf("%d%d%d",&a,&b,&c)==3)
   {

       if((a<=b||b<=c))
       {
           printf("Yes\n");
       }
       else
       {
          printf("No\n");

       }

   }


    return 0;
}
