?
package com.javarush.task.task18.task1803;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
/*
Самые частые байты
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
FileInputStream stream = new FileInputStream(reader.readLine());
ArrayList<Integer> list = new ArrayList<>();
while (stream.available() > 0) {
list.add(stream.read());
}
stream.close();
int a[] = new int[list.size()];
for (int i = 0; i < list.size(); i++) {
for (int j = 1; j < list.size(); j++) {
if (list.get(i) == list.get(j)) {
a[i]++;
list.remove(j);
}
}
}
Arrays.sort(a);
int j=0;
for (int i = a.length-1; i >=0 ; i--) {
while (a[i]==0){
i--;
j=i;
}
if(a[j]==a[i]){
System.out.print(list.get(i)+" ");
}
}
}
}