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 Ruby (2.3.3) (judge verdict: Runtime Error)

a,b,c=gets.split(" ").map(&:to_i)
m1 = [a,b,c].max
m3 = [a,b,c].min
m2 = a + b + c - m1 - m3
count=0
while m2<m1
  m2+=1
  m3+=1
  count+=1
end
if (m2-m3) % 2 == 1
  m1+=1
  m2+=1
  count+=1
end
t = (m2-m3)/2
t.times do
  m3+=2
  count+=1
end
puts count