const DIVISOR: usize = 1_000_000_007;
fn multi(a: &Vec<Vec<usize>>, b: &Vec<Vec<usize>>) -> Vec<Vec<usize>> {
    vec![
        vec![
              (a[0][0] * b[0][0] + a[0][1] * b[1][0]) % DIVISOR
            , (a[0][0] * b[0][1] + a[0][1] * b[1][1]) % DIVISOR
        ]
        ,
        vec![
              (a[1][0] * b[0][0] + a[1][1] * b[1][0]) % DIVISOR
            , (a[1][0] * b[0][1] + a[1][1] * b[1][1]) % DIVISOR
        ]
    ]
}

fn multi_n(n: usize) -> Vec<Vec<usize>> {
    let base: Vec<Vec<usize>> = vec![vec![1, 1], vec![1, 0]];
    if n == 1 { return base; }
    let val = multi_n(n / 2);
    let mut ret = multi(&val, &val);
    if n % 2 == 1 {
        ret = multi(&ret, &base);
    }
    ret
}

//TODO
fn main() {
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();

    let result = multi_n(n);
    let fn_1 = result[0][0];
    let fn_0 = result[1][0];
    println!("{}", fn_1 * fn_0 % DIVISOR);
}