#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define llint long long #define inf 1e18 #define rep(x, s, t) for(llint (x) = (s); (x) < (t); (x)++) #define Rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++) #define chmin(x, y) (x) = min((x), (y)) #define chmax(x, y) (x) = max((x), (y)) #define mod 1000000007 using namespace std; typedef pair P; string s; llint d; llint dp[100005][9]; int main(void) { ios::sync_with_stdio(0); cin.tie(0); cin >> s; llint n = s.size(); s = "#" + s; cin >> d; bool flag = true; for(int j = 1; j <= n; j++){ if(s[j] != '0' && s[j] != '?'){ flag = false; break; } } if(d == 0){ if(flag) cout << 1 << endl; else cout << 0 << endl; return 0; } dp[0][0] = 1; for(int i = 0; i < n; i++){ for(int j = 0; j < 9; j++){ for(int k = 0; k < 10; k++){ if(s[i+1] != '?' && s[i+1]-'0' != k) continue; (dp[i+1][(j+k)%9] += dp[i][j]) %= mod; } } } llint ans = dp[n][d%9]; if(d == 9 && flag) ans += mod-1, ans %= mod; cout << ans << endl; return 0; }