import std.stdio;
import std.string;
import std.conv;
import std.algorithm;
import std.range;
import std.array;

/// main =============
void main(){
  auto old = readln.strip.split(".").join("").to!int;
  auto target = readln.strip.split(".").join("").to!int;
  writeln( target <= old ? "YES" : "NO" );
}