give string s reverse string accord follow rulesall character english letter remain positionall english letter lowercase uppercase reversedreturn s reverse Example 1input s abcdoutput dcbaExample 2input s abcdefghijoutput jihgfedcbaexample 3input s Test1ngLeetcodeQOutput Qedo1cteeLgntseT Constraints1 slength 100s consist character ascii value range 33 122 contain