#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; typedef long long ll; #define sz size() #define pb push_back #define mp make_pair #define fi first #define se second #define all(c) (c).begin(), (c).end() #define rep(i,a,b) for(ll i=(a);i<(b);++i) #define per(i,a,b) for(ll i=(b-1);i>=(a);--i) #define clr(a, b) memset((a), (b) ,sizeof(a)) #define ctos(c) string(1,c) #define print(x) cout<<#x<<" = "<>n; rep(i,3,20000100){ d[i] = i*(i-1)/2; } ll ans = 1; rep(i,0,n-1){ ans *= d[i*2+4]; ans %= MOD; } printf("%lld\n",ans); return 0; }