give string str1 str2 return short string str1 str2 subsequence if multiple valid string return thema string s subsequence string t delete number character t possibly 0 result stre s example 1input str1 abac str2 caboutput cabacexplanation str1 abac subsequence cabac delete cstr2 cab subsequence cabac delete acThe answer provide short string satisfie propertiesexample 2input str1 aaaaaaaa str2 aaaaaaaaoutput aaaaaaaa Constraints1 str1length str2length 1000str1 str2 consist lowercase english letter