03. Stream Of Letters

function streamOfLetters(input) {
    let word = '';
    let total = '';
    let c = 0;
    let o = 0;
    let n = 0;
    let counter = 0;

    while (true) {
        let letter = input[counter++];
        if (letter === 'End') {
            break;
        }

        if (letter >= 'A' && letter <= 'Z' || letter >= 'a' && letter <= 'z') {
            if (letter === 'c' && c === 0) {
                c += 1;
            } else if (letter === 'o' && o === 0) {
                o += 1;
            } else if (letter === 'n' && n === 0) {
                n += 1;
            } else {
                word += letter;
            }
            if (c === 1 && o === 1 && n === 1) {
                c -= 1;
                o -= 1;
                n -= 1;
                total += ' ' + word;
                word = '';
            }
        }
    }
    console.log(total);

}