snake_case to camelCase

Difficulty: 900 2000 ms 128 MB

strings

Convert a snake_case identifier to camelCase: drop the underscores and capitalize each following fragment's first letter.

Input: one line with a snake_case identifier (lowercase fragments joined by single underscores).

Output: the camelCase identifier.

Constraints:

• 1 ≤ length ≤ 100

Sample Tests

hello_world_now

helloWorldNow

solo

solo

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