class Solution {
public String solution(String rsp) {
String answer = "";
for (int i = 0; i < rsp.length(); i++) {
if (rsp.charAt(i) == '2') {
answer += "0";
} else if (rsp.charAt(i) == '0') {
answer += "5";
} else {
answer += "2";
}
}
return answer;
}
}