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class Solution {
  public String solution(String s) {
          String answer = "";

          String[] sSplit = s.split("\\s");

          StringBuffer sb = new StringBuffer();

          for(int i = 0; i < sSplit.length; i++){
              //int index = 0;
              for(int j = 0; j < sSplit[i].length(); j++){

                  if(j % 2 == 0){
                      sb.append(Character.toUpperCase(sSplit[i].charAt(j)));

                  }
                  else{
                      sb.append(Character.toLowerCase(sSplit[i].charAt(j)));

                  }

                  //index++;

              }
              if( i <= sSplit.length - 2 ){
                  sb.append(" ");                 
              }

          }

          answer = sb.toString();

          //System.out.println(s);
          //System.out.println(answer);

          return answer;
  }
}