function myin(){return require("fs").readFileSync("/dev/stdin", "utf8").trim();}
function myout(t){console.log(t);}//standard output
//[no]param
//0:何もしない  1:数値へ変換  2:半角SPで分割  3:改行で分割  4:半角SPで分割し、数値配列へ
//5:改行で分割し、数値配列へ  6:1文字に分割  7:1文字に分割し、数値配列へ
function myconv(i,no){switch(no){case 0:return i;case 1:return parseInt(i);case 2:return i.split(" ");case 3:return i.split("\n");case 4:return i.split(" ").map((a)=>Number(a));case 5:return i.split("\n").map((a)=>Number(a));case 6:return i.split("");case 7:return i.split("").map((a)=>Number(a));}}

function Main(input) {  
  input = myconv(input,3);
  var A = myconv(input[0],6);
  A.sort();
  var B = myconv(input[1],6);
  B.sort();
  B.reverse();
  var tmpA = A.join("");
  var tmpB = B.join("");
  var tmpList = [tmpA,tmpB];
  tmpList.sort();
  if((tmpList[0] == tmpA && tmpList[1] == tmpB) && tmpA != tmpB){
     myout("Yes");
     }else{
      myout("No"); 
     }
}

Main(myin());
