function math(e, t, r, i, n) {
    var s, a, o, u, c, p, l, m, d, h, y = Math.floor(e / r),
        g = Math.floor(t / i),
        f = e % r,
        b = t % i,
        S = [];

    if (s = y - 43 * n % y, s = s % y == 0 ? (y - 4) % y : s, s = 0 == s ? y - 1 : s, a = g - 47 * n % g, a = a % g == 0 ? (g - 4) % g : a, a = 0 == a ? g - 1 : a, f > 0 && b > 0 && (o = s * r, u = a * i, S.push({
        srcX: o,
        srcY: u,
        destX: o,
        destY: u,
        width: f,
        height: b
        })), b > 0)
    for (l = 0; l < y; l++) d = calcXCoordinateXRest_(l, y, n), h = calcYCoordinateXRest_(d, s, a, g, n), c = calcPositionWithRest_(d, s, f, r), p = h * i, o = calcPositionWithRest_(l, s, f, r), u = a * i, S.push({
        srcX: o,
        srcY: u,
        destX: c,
        destY: p,
        width: r,
        height: b
        });
        if (f > 0)
            for (m = 0; m < g; m++) h = calcYCoordinateYRest_(m, g, n), c = (d = calcXCoordinateYRest_(h, s, a, y, n)) * r, p = calcPositionWithRest_(h, a, b, i), o = s * r, u = calcPositionWithRest_(m, a, b, i), S.push({
                srcX: o,
                srcY: u,
                destX: c,
                destY: p,
                width: f,
                height: i
                    });
        for (l = 0; l < y; l++)
            for (m = 0; m < g; m++) h = (m + 37 * n + 41 * (d = (l + 29 * n + 31 * m) % y)) % g, c = d * r + (d >= calcXCoordinateYRest_(h, s, a, y, n) ? f : 0), p = h * i + (h >= calcYCoordinateXRest_(d, s, a, g, n) ? b : 0), o = l * r + (l >= s ? f : 0), u = m * i + (m >= a ? b : 0), S.push({
                srcX: o,
                srcY: u,
                destX: c,
                destY: p,
                width: r,
                height: i
                });
    return S
}

function calcPositionWithRest_(e, t, r, i) {
    return e * i + (e >= t ? r : 0)
}

function calcXCoordinateXRest_(e, t, r) {
    return (e + 61 * r) % t
}

function calcYCoordinateXRest_(e, t, r, i, n) {
    var s, a, o = n % 2 == 1;
    return (e < t ? o : !o) ? (a = r, s = 0) : (a = i - r, s = r), (e + 53 * n + 59 * r) % a + s
}

function calcXCoordinateYRest_(e, t, r, i, n) {
    var s, a, o = n % 2 == 1;
    return (e < r ? o : !o) ? (a = i - t, s = t) : (a = t, s = 0), (e + 67 * n + t + 71) % a + s
}

function calcYCoordinateYRest_(e, t, r) {
    return (e + 73 * r) % t
}