s skip index result
"aukks" "wbqd" 5 "happy"
class Solution {
public String solution(String s, String skip, int index) {
String answer = "";
for(int i=0; i<s.length(); i++){
char c = s.charAt(i);
for(int j=0; j<index; j++){
c+=1;
if(skip.contains(String.valueOf(c))){j--;}
if(c>'z'){c='a';}
}
answer+=c;
}
return answer;
}
}