ACAC

#include <bits/stdc++.h>
using namespace std;
int main(){
    string s;
    map<char, int> mp;
    cin >> s;
    int n = s.length();
    for(int i = 0; i < n; i++){
        mp[s[i]]++;
    }
    int ans = 0;
    char q;
    map<char, int>::iterator it;
    for(it = mp.begin(); it != mp.end(); it++){
        if(it->second > ans){
            ans = it->second;
            q = it->first;
        }
    }
    cout << q << " " << mp[q];
    return 0;
}