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

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

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