Word.cpp

// Problem: A. Word
// Contest: Codeforces - Codeforces Beta Round #55 (Div. 2)
// URL: https://codeforces.com/problemset/problem/59/A
// Memory Limit: 256 MB
// Time Limit: 2000 ms
// Powered by CP Editor (https://github.com/cpeditor/cpeditor)

#include <bits/stdc++.h>
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define ll long long int
#define vi vector<int>
#define vii vector<int, int>
#define vc vector<char>
#define vl vector<ll>
#define mod 1000000007 
#define INF 1000000009
using namespace std;


int main()
{
     ios_base::sync_with_stdio(0);
     cin.tie(0);
     cout.tie(0);
     
     string s;
     cin >> s;
     int lower = 0, upper = 0;
     for(char c : s) {
     	if(isupper(c)) upper++;
     	else lower++;
     }
     
     if(lower >= upper) {
     	for(int i  = 0 ; i < s.length(); i++) {
     		putchar(tolower(s[i]));
     	}
     }
     else {
     	for(int i = 0; i < s.length(); i++) {
     		putchar(toupper(s[i]));
     	}
     }
     
     
     
return 0;
}