#include <iostream>
#include <cstring>
using namespace std;
 
const int MAX_WORDS = 100;
const int MAX_LETTERS = 20;
 
int findFrequestLength(int totalWords[]) {
    int maxWords = 0, frequestLength = 0;
    for (int i = MAX_LETTERS; i > 0; --i) {
        if (totalWords[i] > maxWords) {
            maxWords = totalWords[i];
            frequestLength = i;
        }
    }
    return frequestLength;
}
 
int main() {
    int n, totalWords[MAX_LETTERS + 1] = {0};
    char words[MAX_WORDS][MAX_LETTERS + 1] = {0};
    cin >> n;
    for (int i = 0; i < n; ++i) {
        cin >> words[i];
        ++totalWords[strlen(words[i])];
    }
    int frequestLength = findFrequestLength(totalWords);
    for (int i = 0; i < n; ++i) {
        if (strlen(words[i]) == frequestLength) {
            cout << words[i] << ' ';
        }
    }
    return 0;
}

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

NApBcHBsZQpBcHBsZQpBYmNkZWZnaWoKQXBwbGU=

4
Apple
Apple
Abcdefgij
Apple