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function removecommas(wordlist) {
    for(i=0;i<wordlist.length;i++) {
        if (wordlist[i][wordlist[i].length-1] == ',') {
            wordlist[i] = popstr(wordlist[i]);
        }
    }
    return wordlist;
}

function hascomma(word) {
    if (word[word.length-1] == ',') {
        return true;
    } else {
        return false;
    }
}

function checkcommaindex(wordlist) {
    var commaslice = [];
    var count = 0;
    var mode = 'search';
    while (count < wordlist.length) {
        if (mode == 'search') {
            if (hascomma(wordlist[count])) {
                commaslice.push(wordlist[count]);
                mode = 'slice';
                count ++;
            } else {
                count ++;
            }
        }
        if (mode == 'slice') {
            if (hascomma(wordlist[count])) {
                commaslice.push(wordlist[count]);
                count++;
            } else {
                mode = 'search';
                count++;
            }
        }
    }
    return commaslice;
}