const DIVISOR: u64 = 10u64.pow(9) + 7;

fn main() {
    let mut input = String::new();
    std::io::stdin().read_line(&mut input).ok();
    let input: Vec<u64> = input
        .split_whitespace()
        .map(|n| n.parse().unwrap())
        .collect();

    println!("{}", (input[0] * input[1]) % DIVISOR);
}