Problem:
Score : 100 points

Problem Statement

You are given three integers A, B and C.
Determine whether C is not less than A and not greater than B.

Constraints

-100≤A,B,C≤100

A, B and C are all integers.

Input

Input is given from Standard Input in the following format:

A B C

Output

If the condition is satisfied, print Yes; otherwise, print No.

Sample Input 1

1 3 2

Sample Output 1

Yes

C=2 is not less than A=1 and not greater than B=3, and thus the output should be Yes.

Sample Input 2

6 5 4

Sample Output 2

No

C=4 is less than A=6, and thus the output should be No.

Sample Input 3

2 2 2

Sample Output 3

Yes

Solution in Ruby (2.3.3) (judge verdict: Runtime Error)

require 'pp'

n, m = gets.strip.split.map(&:to_i)
map = {}
m.times do
    a, b = gets.strip.split.map(&:to_i)
    map[a] = {} unless map.key?(a)
    map[b] = {} unless map.key?(b)
    if map[a].key?(b)
        map[a][b] += 1
    else
        map[a][b] = 1
    end
    if map[b].key?(a)
        map[b][a] += 1
    else
        map[b][a] = 1
    end
end

n.times do |i|
    puts map.key?(i + 1) map[i + 1].values.inject(:+) : 0
end