samoglaski golema, soglaski mala

#include <iostream>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <vector>
#include <cstring>
#include <cctype>


using namespace std;

void transform(char *str) {
    int gol = strlen(str);
    //  int j=0;
    for (int i = 0; i < gol; i++) {
        if (str[i] == 'a' || str[i] == 'A'||  str[i] == 'e'||  str[i] == 'E'||  str[i] == 'I'||  str[i] == 'i'||  str[i]
            == 'o' || str[i] == 'O'||  str[i] == 'u' || str[i] == 'U') {
            str[i] = toupper(str[i]);
            } else
                str[i] = tolower(str[i]);
    }
    cout << str;
}


int main() {
    char str[100];
    cin.getline(str, 100);
    // cout << str;
    //cout << endl;
    transform(str);
    return 0;
}