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Module: Prelude
Function: lex
Type: ReadS String
Description:
Related: read, reads, show, shows

Example 1

Input: lex "ABC"

Output: [("ABC","")]

Example 2

Input: lex "ABC DEF GHI"

Output: [("ABC"," DEF GHI")]

Example 3

Input:

Output:

Example 4

Input:

Output: