#!/usr/bin/rdmd
#!/usr/bin/rdmd
import std.stdio;
import std.conv: to;
import std.array: split;
import std.ascii: newline;


void main()
{
   int[3] a = 0;
   foreach (string line; lines(stdin))
   {
      if(line == newline) break;
      else
      {
         a = to!(int[])(split(line));
         if((a[0] < a[1]) && (a[1] < a[2]))
            writeln("Yes");
         else
            writeln("No");
      }
   }
}