06. Title Case

#include <iostream>
#include <string>

using namespace std;

int main() {
    string str;
    getline(cin, str);
    str[0] = toupper(str[0]);

    for (int i = 1; i < str.length(); i++) {
        if (!isalpha(str[i - 1]) && islower(str[i])) {
            str[i] = toupper(str[i]);
        }
    }

    cout << str << endl;
    return 0;
}