Pangram Check

Difficulty: 900 2000 ms 128 MB

strings

Does the string contain every letter of the English alphabet at least once?

Input: one line with the string S.

Output: YES or NO.

Constraints:

• 1 ≤ |S| ≤ 10⁴
• S contains lowercase English letters

Sample Tests

thequickbrownfoxjumpsoverthelazydog

YES

hello

NO

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