var input= require('fs').readFileSync('/dev/stdin', 'utf8');
var Arr=input.split(" ");
var a=Arr[0]-0;
var b=Arr[1]-0;
var c=Arr[2]-0;
var tasu=0;
if(a<b)tasu++;
if(b<c)tasu++;
var str=(tasu==2)?"Yes":"No";
console.log(str);