/* Problem URL: https://codeforces.com/contest/2050/problem/F */ #include using namespace std; #define V vector #define rmin(a, b) a = min(a, b) #define rmax(a, b) a = max(a, b) #define rep(i, lim) for (size_t i = 0; i < (lim); i++) #define nrep(i, s, lim) for (size_t i = s; i < (lim); i++) #define repv(i, v) for (auto &i : (v)) #define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; } #define sortv(v) sort(v.begin(), v.end()) #define all(v) (v).begin(), (v).end() using vi = vector; using vvi = vector; using vvvi = vector; using vvvvi = vector; using ll = long long; using vl = vector; using vvl = vector; using vvvl = vector; using vvvvl = vector; template auto operator<<(ostream &os, const vector &vec)->ostream& { os << vec[0]; for (size_t i = 1; i < vec.size(); i++) { os << ' ' << vec[i]; } os << '\n'; return os; } template auto operator>>(istream &is, vector &vec)->istream& { for (auto &i : vec) { is >> i; } return is; } template auto operator<<(ostream &os, const vector> &vec)->ostream& { for (auto &i : vec) { os << i[0]; for (size_t j = 1; j < i.size(); j++) { os << ' ' << i[j]; } os << '\n'; } return os; } template auto operator>>(istream &is, vector> &vec)->istream& { for (auto &i : vec) { for (auto &j : i) { is >> j; } } return is; } int dp(int i, int j, int k, string &a, string &b, string &c) { if (k >= c.size()) { return 0; } if (i >= a.size()) { ll tmp = 0; while (j < b.size()) { if (b[j] != c[k]) { tmp++; } j++; k++; } return tmp; } if (j >= b.size()) { ll tmp = 0; while (i < a.size()) { if (a[i] != c[k]) { tmp++; } i++; k++; } return tmp; } if (a[i] != c[k] && b[j] != c[k]) { return min(dp(i + 1, j, k + 1, a, b, c), dp(i, j + 1, k + 1, a, b, c)) + 1; } if (a[i] == b[j]) { return min(dp(i + 1, j, k + 1, a, b, c), dp(i, j + 1, k + 1, a, b, c)); } if (a[i] == c[k]) { return dp(i + 1, j, k + 1, a, b, c); } return dp(i, j + 1, k + 1, a, b, c); } int inf = INT32_MAX >> 1; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int t; cin >> t; while (t--) { string a, b, c; cin >> a >> b >> c; // cout << dp(0, 0, 0, a, b, c) << '\n'; vvi dp(a.size() + 1, vi(b.size() + 1, inf)); dp[0][0] = 0; for (size_t i = 0; i <= a.size(); i++) { for (size_t j = 0; j <= b.size(); j++) { if (i == 0 && j == 0) { continue; } if (i > 0) { if (a[i - 1] == c[i + j - 1]) { rmin(dp[i][j], dp[i - 1][j]); } else { rmin(dp[i][j], dp[i - 1][j] + 1); } } if (j > 0) { if (b[j - 1] == c[i + j - 1]) { rmin(dp[i][j], dp[i][j - 1]); } else { rmin(dp[i][j], dp[i][j - 1] + 1); } } } } cout << dp[a.size()][b.size()] << '\n'; } }