function solve() {
    document.addEventListener('DOMContentLoaded', () => {
        let inputs = document.querySelectorAll('input');
        const checkBtn = document.querySelector("#exercise > table > tfoot > tr > td > button:nth-child(1)");
        const clear = document.querySelector("#exercise > table > tfoot > tr > td > button:nth-child(2)");
        const table = document.querySelector('table');
        const checkPar = document.querySelector('#check p');

        checkBtn.style.cursor = "pointer";
        clear.style.cursor = "pointer";

        clear.addEventListener('click', reset);
        checkBtn.addEventListener('click', checkResult);

        function reset() {
            inputs.forEach(input => input.value = '');
            table.style.border = "none";
            checkPar.innerHTML = '';
        }

        const checkForEquality = arr => arr.every(el => el === arr[0]);

        function checkResult() {
            let temp = [];
            let rowsResults = [];
            let colsResults = [];
            let colOne = [];
            let colTwo = [];
            let colThree = [];

            inputs.forEach((input) => {
                    if (temp.length >= 3) {
                        rowsResults.push(checkForEquality(temp));
                        colOne.push(temp[0]);
                        colTwo.push(temp[1]);
                        colThree.push(temp[2]);
                        temp.length = 0;
                    }
                    temp.push(input.value);
            });
            rowsResults.push(checkForEquality(temp));
            colOne.push(temp[0]);
            colTwo.push(temp[1]);
            colThree.push(temp[2]);

            colsResults.push(checkForEquality(colOne));
            colsResults.push(checkForEquality(colTwo));
            colsResults.push(checkForEquality(colThree));


            if (checkForEquality(rowsResults) && checkForEquality(colsResults) && rowsResults.includes(false) && colsResults.includes(false)) {
                table.style.border = "2px solid green";
                checkPar.style.color = 'green';
                checkPar.innerHTML = "You solve it! Congratulations!";
            } else {
                table.style.border = "2px solid red";
                checkPar.style.color = 'red';
                checkPar.innerHTML = "NOP! You are not done yet..." ;
            }

        }
    });
}