fn main() {
    let a = 1.5e6;
    let b = 1.5E6;
    let c = 1e6;
    let d = 1E6;
    let e = 3.0f32;
    let f = 5.9f64;
    let g = 1.e6f32;
    let h = 1.0e7f64;
    let i = 1.0E7f64;
    let j = 3.1e+9;
    let k = 3.2e-10;
    assert (a == b);
    assert (c < b);
    assert (c == d);
    assert (e < g);
    assert (f < h);
    assert (g == 1000000.0f32);
    assert (h == i);
    assert (j > k);
    assert (k < a);
}