#define _USE_MATH_DEFINES #include using namespace std; #define FOR(i,m,n) for(int i=(m);i<(n);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) (v).begin(),(v).end() using ll = long long; constexpr int INF = 0x3f3f3f3f; constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL; constexpr double EPS = 1e-8; constexpr int MOD = 1000000007; // constexpr int MOD = 998244353; constexpr int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1}; constexpr int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1}; template inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; } template inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; } struct IOSetup { IOSetup() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << fixed << setprecision(20); } } iosetup; int main() { int h, w; cin >> h >> w; vector b(h); REP(i, h) cin >> b[i]; int nim = 0; REP(j, w) { int grundy = 0; REP(i, h) grundy = (grundy * 2 + (b[i][j] == 'o')) % 3; nim ^= grundy; } cout << (nim == 0 ? "Second\n" : "First\n"); return 0; vector dp(1 << h, 0); FOR(b, 1, 1 << h) { set grundy; REP(i, h) { if (b >> i & 1) { grundy.emplace(dp[b ^ (1 << i)]); for (int j = i - 1; j >= 0; --j) { if (b >> j & 1) break; int nx = b ^ (1 << i); FOR(k, j, i) nx |= 1 << k; grundy.emplace(dp[nx]); } } } while (grundy.count(dp[b]) == 1) ++dp[b]; } }