#include <bits/stdc++.h>

#define rep(i, a, b) for(int i = (a); i <= (b); i ++)
using std::cin, std::cout, std::cerr;
using ll = long long;

const ll P = 1e9 + 7;
ll Pow(ll a, ll b, ll p) {
    ll r = 1;
    for(; b; b /= 2) {
        if(b & 1)
            r = r * a % p;
        a = a * a % p;
    }
    return r;
}
ll Inv(ll x, ll p) { return Pow(x, p - 2, p); }

int main() {
    std::ios::sync_with_stdio(false);
    ll p, k; cin >> p >> k;
    ll m = Pow(10, p - 1, p) - 1;
    ll ans = (Pow(10, p - 1, P) - 1 - m) % P * Inv(p, P) % P;
    if(k == 0) ans ++;
    ans = (ans % P + P) % P;
    cout << ans << '\n';
}