text: def solution(s):
      answer = ''
      flag = 0
      for i in range(len(s)):
          if s[i] == ' ': 
              flag = 0
              answer += s[i]
              continue
          if flag % 2 == 0: answer += s[i].upper()
          else: answer += s[i].lower()
          flag += 1
      return answer
  
  print(solution("try hello world"))