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- /*
- ┓┏┓┏┓┃
- ┛┗┛┗┛┃
- ┓┏┓┏┓┃
- ┛┗┛┗┛┃
- ┓┏┓┏┓┃\○/
- ┛┗┛┗┛┃ / /
- ┓┏┓┏┓┃ノ
- ┛┗┛┗┛┃
- ┓┏┓┏┓┃
- ┛┗┛┗┛┃
- ┓┏┓┏┓┃
- ┛┗┛┗┛┃
- ┓┏┓┏┓┃
- ┛┗┛┗┛┃
- ┓┏┓┏┓┃┓
- ┛┗┛┗┛┃┃
- MIPTCLASSICMIPTCLASSICMIPTCLASSICMIPTCLASSICMIPTCLASSICMIPTCLASSIC
- */
- // #define pragma
- #ifdef pragma
- #pragma GCC optimize("Ofast")
- #pragma GCC optimize("no-stack-protector")
- #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
- #pragma GCC optimize("unroll-loops")
- #pragma GCC diagnostic ignored "-Wunused-result"
- #endif // pragma
- #include<bits/stdc++.h>
- #include <ext/pb_ds/assoc_container.hpp>
- #include <ext/pb_ds/tree_policy.hpp>
- #define ll long long
- #define all(x) begin(x), end(x)
- #define pb push_back
- #define x first
- #define y second
- #define int long long
- #define zero(x) memset(x, 0, sizeof(x))
- using namespace std;
- using namespace __gnu_pbds;
- typedef vector<int> vi;
- typedef vector<bool> vb;
- typedef pair<int, int> pii;
- typedef long double ld;
- typedef vector<vi> matrix;
- template<typename T>
- using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
- const ld PI = atan2(0, -1);
- void seriy() {
- ios::sync_with_stdio(0);
- cin.tie(0);
- cout.tie(0);
- cout << fixed << setprecision(10);
- #if 1
- freopen("input", "r", stdin);
- freopen("output", "w", stdout);
- #endif
- }
- const int MOD = 1e9 + 7;
- signed main() {
- seriy();
- string s;
- cin >> s;
- int n = s.size();
- int dp[n][10];
- for(int i = 0; i < n; i++) {
- for(int j = 0; j < 10; j++) {
- dp[i][j] = 0;
- }
- }
- for(int i = 1; i < (s[0] - '0'); i++) {
- dp[0][i] = 1;
- }
- for(int i = 1; i < n; i++) {
- for(int j = 0; j <= (s[i] - '0'); j++) {
- for(int k = 0; k < 10; k++) {
- int cur = s[i] - '0', prev = s[i - 1] - '0';
- if(j == k || cur - j == prev - k) {
- continue;
- }
- dp[i][j] += dp[i - 1][k];
- dp[i][j] %= MOD;
- }
- }
- }
- int ans = 0;
- for(int i = 0; i < 10; i++) {
- ans += dp[n - 1][i];
- }
- cout << ans;
- return 0;
- }
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