95. Pangram Check
EasySet
Print YES if the sentence contains every letter a–z at least once (case-insensitive), else NO.
Input format
A single line.
Output format
YES or NO
Example 1
Input
The quick brown fox jumps over the lazy dog
Output
YES
Example 2
Input
Hello world
Output
NO
Constraints
1 ≤ |s| ≤ 10⁵
Read input from standard input and print the answer to standard output. Your code is judged against 4 test cases, most of them hidden.
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