function oddOccurences(input) {
    let wordsMap = new Map;

    let wordsArr = input.split(" ");
    wordsArr = wordsArr.map(word => word.toLowerCase());


    wordsArr.forEach(word => {
        let count = 1;

        if (!wordsMap.has(word)) {
            wordsMap.set(word, count);
        }
        else {
            let currentQuantity = wordsMap.get(word);
            currentQuantity++;
            wordsMap.set(word, currentQuantity);
        }

    });

    let arr = [...wordsMap];
    let line = "";
    arr.forEach(element => {
        if (element[1] % 2 != 0) {
            line += element[0] + " ";
        }
    });
    console.log(line);
}