func_code_string: #include <bits/stdc++.h>   using namespace std;   template <typename A, typename B, typename C>   struct triple {     A X;     B Y;     C Z;     triple(A a = 0, B b = 0, C c = 0) : X(a), Y(b), Z(c) {}   };   template <typename A, typename B, typename C>   triple<A, B, C> make_triple(A a = 0, B b = 0, C c = 0) {     return triple<A, B, C>(a, b, c);   }   template <typename A, typename B, typename C>   bool operator<(const triple<A, B, C>& a, const triple<A, B, C>& b) {     if (a.X != b.X) return a.X < b.X;     if (a.Y != b.Y) return a.Y < b.Y;     return a.Z < b.Z;   }   template <typename T, typename SS>   ostream& operator<<(ostream& ofs, const pair<T, SS>& p) {     ofs <<  (   << p.first <<   ,   << p.second <<   ) ;     return ofs;   }   template <typename T>   void print(T a) {     for (auto i : a) cout << i <<    ;     cout <<   n ;   }   template <typename T>   T max(T a, T b, T c) {     return max(a, max(b, c));   }   template <typename T>   T min(T a, T b, T c) {     return min(a, min(b, c));   }   template <typename T, typename D>   D min(T a) {     return *min_element(a.begin(), a.end());   }   template <typename T, typename D>   D max(T a) {     return *max_element(a.begin(), a.end());   }   struct custom_hash {     static uint64_t splitmix64(uint64_t x) {       x += 0x9e3779b97f4a7c15;       x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;       x = (x ^ (x >> 27)) * 0x94d049bb133111eb;       return x ^ (x >> 31);     }     size_t operator()(uint64_t x) const {       static const uint64_t FIXED_RANDOM =           chrono::steady_clock::now().time_since_epoch().count();       return splitmix64(x + FIXED_RANDOM);     }   };   void solve() {     string s;     cin >> s;     if ((long long)(s.size()) & 1) s =  0  + s;     long long n = (long long)(s.size());     for (long long i = 0; i < (n); i++) s[i] -=  0 ;     reverse(s.begin(), s.end());     vector<vector<long long> > dp(n / 2 + 1, vector<long long>(4));     dp[0][0] = 1;     for (long long i = 0; i < (n / 2); i++)       for (long long j = 0; j < (4); j++) {         long long x = 2 * i, y = x + 1;         long long dx = j & 1, dy = j >> 1;         for (long long d11 = 0; d11 < (10); d11++)           for (long long d12 = 0; d12 < (10); d12++) {             long long sx = d11 + d12 + dx;             if (sx % 10 != s[x]) continue;             long long nmask = (sx >= 10);             for (long long d21 = 0; d21 < (10); d21++)               for (long long d22 = 0; d22 < (10); d22++) {                 long long sy = d21 + d22 + dy;                 if (sy % 10 != s[y]) continue;                 if (sy >= 10) nmask |= 2;                 dp[i + 1][nmask] += dp[i][j];               }           }       }     cout << dp[n / 2][0] - 2 <<   n ;   };   signed main() {     if (0) {       freopen(            a             .in ,            r , stdin);       freopen(            a             .out ,            w , stdout);     }     srand(time(NULL));     cin.tie(0);     cout.tie(0);     ios_base::sync_with_stdio(false);     long long t = 1;     cin >> t;     for (long long _ = 0; _ < (t); _++) solve();   }   