const MOD: usize = 1e9 as usize + 7;

fn main() {
    let mut ab = String::new();
    std::io::stdin().read_line(&mut ab).ok();
    let ab: Vec<usize> = ab.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let a = ab[0];
    let b = ab[1];

    let xodd = (a+1) / 2 * 2 % MOD;
    let xeven = (a / 2 * 2 + 1) % MOD;
    let yodd = (b+1) / 2 * 2 % MOD;
    let yeven = (b / 2 * 2 + 1) % MOD;
    let result = xodd * yodd % MOD + xeven * yeven % MOD;
    println!("{}", result % MOD);
}