#include #include #include using namespace std; const int MAX_N = 200007; typedef unsigned long long ll; struct SAM { int val[MAX_N], fa[MAX_N], c[26][MAX_N]; int tot, last; int which[MAX_N]; inline int newNode(int step) { val[++tot] = step; fa[tot] = 0; for (int i = 0; i < 26; ++i) c[i][tot] = 0; return tot; } inline void extend(int k) { int p = last; int np = newNode(val[last] + 1); which[np] = k; while (p && !c[k][p]) c[k][p] = np, p = fa[p]; if (!p) fa[np] = 1; else { int q = c[k][p]; if (val[q] == val[p] + 1) fa[np] = q; else { int nq = newNode(val[p] + 1); which[nq] = k; for (int i = 0; i < 26; ++i) c[i][nq] = c[i][q]; fa[nq] = fa[q]; fa[q] = fa[np] = nq; while (p && c[k][p] == q) c[k][p] = nq, p = fa[p]; } } last = np; } inline int add(int k) { extend(k); } inline void init() { tot = 0; last = newNode(0); } } suf; char A[MAX_N>>1], B[MAX_N>>1]; ll dp[26]; int main() { int T; scanf("%d", &T); while (T-- > 0) { suf.init(); scanf("%s%s", A, B); int n = strlen(B); reverse(B, B + n); for (int i = 0; B[i]; ++i) suf.add(B[i] - 'a'); memset(dp, 0, sizeof dp); for (int i = 1; i <= suf.tot; ++i) dp[suf.which[i]] += suf.val[i] - suf.val[suf.fa[i]]; suf.init(); for (int i = 0; A[i]; ++i) suf.add(A[i] - 'a'); ll ans = 0; for (int i = 1; i <= suf.tot; ++i) { for (int j = 0; j < 26; ++j) if (!suf.c[j][i]) { ans += dp[j] * (suf.val[i] - suf.val[suf.fa[i]]); } if (suf.fa[i]) ans += suf.val[i] - suf.val[suf.fa[i]]; } printf("%I64u\n", ans + 1); } return 0; }