CCC '13 J2 - Rotating letters

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Points: 3
Time limit: 2.0s
Memory limit: 64M

Problem type
Canadian Computing Competition: 2013 Stage 1, Junior #2

An artist wants to construct a sign whose letters will rotate freely in the breeze. In order to do this, she must only use letters that are not changed by rotation of 180 degrees: I, O, S, H, Z, X, and N.

Write a program that reads a word and determines whether the word can be used on the sign.

Input Specification

The input will consist of one word, all in uppercase letters, with no spaces. The maximum length of the word will be 30 letters, and the word will have at least one letter in it.

Output Specification

Output YES if the input word can be used on the sign; otherwise, output NO.

Sample Input 1


Output for Sample Input 1


Sample Input 2


Output for Sample Input 2



  • -2
    emanresu  commented on March 24, 2022, 4:44 p.m.

    how does mine even work

    • -2
      tappbros  commented on March 24, 2022, 7:49 p.m.

      Brute forcing. That's how.

  • 66
    Raymo111  commented on Aug. 7, 2018, 9:34 a.m.

    I like how NO is a valid word but YES isn't :)

    • 7
      charliezhao06  commented on Oct. 31, 2020, 7:29 p.m.

      Is is valid, and isn't isn't valid also.

      • 4
        kevinyang  commented on Oct. 31, 2020, 8:21 p.m.

        Water is wet

        • -4
          leoxu821  commented on Feb. 25, 2021, 8:38 p.m.

          Wet is Water

  • -60
    BMP  commented on Jan. 7, 2015, 5:03 p.m.

    This comment is hidden due to too much negative feedback. Show it anyway.

    • -1
      emanresu  commented on March 24, 2022, 4:23 p.m.

      um how

      • -1
        John  commented on March 25, 2022, 7:47 p.m.

        I got two lines with C++, don't know if it's possible in one