Text parsing in C++

I want to make a program to convert normal text into owo text. Here is my code:

#include <iostream>
using namespace std;
int main() {
    string text;
    cout << "Text: " << endl;
    cin >> text;
    string chars[16] = {};
    for (int i = 0; i > text.length(); i++) {
        string character = text[i];
        if (character == 'r') {
            chars[i] = 'w';
        }
        else if (character == 'l') {
            chars[i] = 'w';
        }
        else {
            chars[i] = character;
        }
    }
    return 0;

}

What am I doing wrong here? I am a beginner. I started learning C++ today.