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Conference Track Registration

Time limit1sMemory limit2048 MB

Summary
Given a paper topic, print which conference track to join by checking which track's keyword appears in the topic.
Level

Easy2 of 10

Topics
String, Implementation
Solved
No attempts yet

Problem

The Korea Information Technology Promotion Agency holds a conference every summer and winter.

The 2024 summer conference has two tracks: "Digital Humanities" and "Public Bigdata."

Jinheung plans to attend but does not know which track to choose, so Jinheung asks for your help.

Given the topic of Jinheung's paper, tell Jinheung which track to join.

A track is chosen by checking whether the paper topic contains a specific word. Join the track that the matching word belongs to.

TrackKeywords
Digital Humanitiessocial, history, language, literacy
Public Bigdatabigdata, public, society

Each input leads to exactly one track.

Input

The first line contains a paper topic of at most 100 characters, made of English letters (uppercase and lowercase) and spaces.

Output

If the result is Digital Humanities, print digital humanities. If the result is Public Bigdata, print public bigdata.

Examples3

  1. Example 1

    Input
    history
    
    Expected output
    digital humanities
    
  2. Example 2

    Input
    bigdata
    
    Expected output
    public bigdata
    
  3. Example 3

    Input
    history of korea
    
    Expected output
    digital humanities