Problem:
Score : 100 points

Problem Statement

You are given a string S of length 3 consisting of a, b and c. Determine if S can be obtained by permuting abc.

Constraints

|S|=3

S consists of a, b and c.

Input

Input is given from Standard Input in the following format:

S

Output

If S can be obtained by permuting abc, print Yes; otherwise, print No.

Sample Input 1

bac

Sample Output 1

Yes

Swapping the first and second characters in bac results in abc.

Sample Input 2

bab

Sample Output 2

No

Sample Input 3

abc

Sample Output 3

Yes

Sample Input 4

aaa

Sample Output 4

No

Solution in OCaml (4.02.3) (judge verdict: Accepted)

let s = Array.init 3 @@ fun _ -> Scanf.scanf " %c" @@ fun c -> c
let _ =
  Array.sort compare s;
  print_endline @@ if s = [|'a'; 'b'; 'c'|] then "Yes" else "No"