#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define REP(i,s,n) for(int i=(int)(s);i<(int)(n);i++) using namespace std; typedef long long int ll; typedef vector VI; typedef vector VL; typedef pair PI; const ll mod = 1e9 + 7; ll gcd(ll a, ll b) { return b == 0 ? a : gcd(b, a % b); } pair arith_prog_intersect(pair p1, pair p2) { ll g = p1.second / gcd(p1.second, p2.second) * p2.second; ll x = 0; for (ll i = 0; i < g / p1.second; ++i) { x = p1.first + i * p1.second; if (x >= p2.first && (x - p2.first) % p2.second == 0) { return pair(x, g); } } return pair(-1, -1); } int main(void){ int n, k; cin >> n >> k; int a[100] = {}; int dp[100] = {}; REP(i, 0, n) { a[i] = i; dp[i] = -1; } REP(i, 0, k) { int x, y; cin >> x >> y; x--, y--; swap(a[x], a[y]); } REP(i, 0, n) { if (dp[i] > 0) { continue; } int c = 1; int v = a[i]; while (v != i) { v = a[v]; c++; } while (dp[v] < 0) { dp[v] = c; v = a[v]; } } int q; cin >> q; REP(loop_cnt, 0, q) { VI b(n); REP(i, 0, n) { cin >> b[i]; b[i]--; } bool ok = true; pair coef(0, 1); REP(i, 0, n) { int c = 0; int v = i; int goal = b[i]; while (c <= dp[i]) { if (goal == v) { break; } v = a[v]; c++; } if (c > n) { ok = false; break; } if (0) { cerr << "y(" << i << ")= " << c << " + " << dp[i] << " * x" << endl; } coef = arith_prog_intersect(coef, pair(c, dp[i])); if (coef.first < 0) { ok = false; break; } } if (not ok) { cout << -1 << endl; continue; } if (coef.first == 0) { coef.first = coef.second; } cout << coef.first << endl; } }