function diagonalSums(input) {
    let matrix = [];
    for (let r = 0; r < input.length; r++) {
        let line = input[r].split(',').map(Number);
        matrix.push(line);
    }
    var lenghtLine1 = calculateDistanceBetweenTwoPoints(matrix[0][0], matrix[1][0], matrix[2][0], matrix[3][0]);
    var lenghtLine2 = calculateDistanceBetweenTwoPoints(matrix[4][0], matrix[5][0], matrix[6][0], matrix[7][0]);
    var lenghtLine3 = calculateDistanceBetweenTwoPoints(matrix[8][0], matrix[9][0], matrix[10][0], matrix[11][0]);
    console.log(lenghtLine1.toFixed(2));
    console.log(lenghtLine2.toFixed(2));
    console.log(lenghtLine3.toFixed(2));


    if(canFormTriangle(lenghtLine1,lenghtLine2,lenghtLine3)==true){
        console.log("Triangle can be formed");
    }
    else{
        console.log("Triangle can't be formed");
    }
    function calculateDistanceBetweenTwoPoints(PointOneX, PointOneY, PointTwoX, PointTwoY) {
        return (Math.sqrt(Math.pow(PointTwoX - PointOneX, 2) + Math.pow(PointTwoY - PointOneY, 2)));
    }
    function canFormTriangle(line1, line2, line3) {
        return line1 + line2 > line3 && line2 + line3 > line1 && line3 + line1 > line2;
    }
}

diagonalSums([
    '5', '6', '7', '8',
    '1', '2', '3', '4',
    '9', '10', '11', '12'
]);
diagonalSums([
    '7', '7', '2', '2',
    '5', '6', '2', '2',
    '95', '-14.5', '0', '-0.123'
]);