],[15,49,5],[16,49,5],[17,49,5],[18,49,5],[19,49,5],[20,49,5],[21,49,5],[22,49,5],[23,49,5],[24,49,5],[25,49,5],[26,49,5],[27,49,5],[28,49,5],[29,49,5],[30,49,5],[31,49,5],[32,49,5],[33,49,5],[34,49,5],[35,49,5],[36,49,5],[37,49,5],[38,49,5],[39,49,5],[40,49,5],[41,49,4],[42,49,5],[43,49,5],[44,49,5],[45,49,5],[46,49,5],[47,49,5],[48,49,5],[49,49,5]];

                data.sort(function (a, b) {
                    var dist0 = (a[0] - 25) * (a[0] - 25) + (a[1] - 25) * (a[1] - 25);
                    var di