#include using namespace std; #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #define rep(i,n) for(ll i=0;i=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define pb push_back #define ins insert #define pqueue(x) priority_queue,greater> #define all(x) (x).begin(),(x).end() #define CST(x) cout<> #define rev(x) reverse(x); using ll=long long; using vl=vector; using vvl=vector>; using pl=pair; using vpl=vector; using vvpl=vector; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e18; const ll dy[9]={0,1,0,-1,1,1,-1,-1,0}; const ll dx[9]={1,0,-1,0,1,-1,1,-1,0}; template inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } //0-indexed,2冪のセグメントツリー template struct SegTree { private: int n;// 葉の数 vector data;// データを格納するvector T def; // 初期値かつ単位元 function operation; // 区間クエリで使う処理 function change;// 点更新で使う処理 T find(int a, int b) { T val_left = def, val_right = def; for (a += (n - 1), b += (n - 1); a < b; a >>= 1, b >>= 1) { if ((a & 1) == 0){ val_left = operation(val_left, data[a]); } if ((b & 1) == 0){ val_right = operation(data[--b],val_right); } } return operation(val_left, val_right); } public: // _n:必要サイズ, _def:初期値かつ単位元, _operation:クエリ関数, // _change:更新関数 SegTree(size_t _n, T _def, function _operation, function _change=[](T a,T b){return b;}) : def(_def), operation(_operation), change(_change) { n = 1; while (n < _n) { n *= 2; } data = vector(2 * n - 1, def); } void set(int i, T x) { data[i + n - 1] = x; } void build() { for (int k=n-2;k>=0;k--) data[k] = operation(data[2*k+1],data[2*k+2]); } // 場所i(0-indexed)の値をxで更新 void update(int i, T x) { i += n - 1; data[i] = change(data[i], x); while (i > 0) { i = (i - 1) / 2; data[i] = operation(data[i * 2 + 1], data[i * 2 + 2]); } } T all_prod(){ return data[0]; } // [a, b)の区間クエリを実行 T query(int a, int b) { //return _query(a, b, 0, 0, n); return find(a,b); } // 添字でアクセス T operator[](int i) { return data[i + n - 1]; } }; int main(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); vvl ex(4,vl(4));rep(i,4)ex[i][i]=1; vvl C=ex;C[0][1]++; vvl W=ex;W[1][2]++;W[2][3]++; vvl invC=ex;invC[0][1]=-1; vvl invW=ex;invW[1][2]--;invW[2][3]--;invW[1][3]++; auto fx=[](vvl a,vvl b){ vvl mat(4,vl(4)); rep(i,4){ rep(k,4){ rep(j,4){ mat[i][j]+=a[i][k]*b[k][j]; } } } return mat; }; /*ll h,w;cin >> h >> w; vector g(h); rep(i,h){ rep(j,w){ if(j&1)g[i]+='c'; else g[i]+='w'; } } ll q;cin >> q; vvl pls(q,vl(4)); rep(i,q){ rep(j,4){ if(j>=2)pls[i][j]=w-1; else pls[i][j]=0; } }*/ ll h,w;cin >> h >> w; vector g(h);rep(i,h)cin >> g[i]; ll q;cin >> q; vvl pls(q,vl(4)); rep(i,q){ rep(j,4)cin >>pls[i][j],pls[i][j]--; } vl ans(q); auto calc=[&](){ rep(i,h){ ll dp[w+1][4][4]; memset(dp,0,sizeof(dp)); rep(_,4)dp[0][_][_]=1; rep(j,w){ if(g[i][j]=='c'){ rep(x,4){ rep(z,4){ rep(y,4){ dp[j+1][x][y]+=dp[j][x][z]*C[z][y]; } } } } else { rep(x,4){ rep(z,4){ rep(y,4){ dp[j+1][x][y]+=dp[j][x][z]*W[z][y]; } } } } } ll ndp[w+1][4][4]; memset(ndp,0,sizeof(ndp)); rep(_,4)ndp[0][_][_]=1; rep(j,w){ if(g[i][j]=='c'){ rep(x,4){ rep(z,4){ rep(y,4){ ndp[j+1][x][y]+=invC[x][z]*ndp[j][z][y]; } } } } else { rep(x,4){ rep(z,4){ rep(y,4){ ndp[j+1][x][y]+=invW[x][z]*ndp[j][z][y]; } } } } } rep(j,q){ if(pls[j][0]<=i&&i<=pls[j][2]){ vvl mat(4,vl(4)); rep(x,4){ rep(z,4){ rep(y,4){ mat[x][y]+=ndp[pls[j][1]][x][z]*dp[pls[j][3]+1][z][y]; } } } ans[j]+=mat[0][3]; } } } }; calc(); rep(i,h)rev(all(g[i])); rep(i,q){ tie(pls[i][1],pls[i][3])=make_pair(w-pls[i][3]-1,w-pls[i][1]-1); } calc(); { vector ng(w); rep(i,h)rep(j,w){ ng[j]+=g[i][j]; } swap(h,w);swap(g,ng); rep(i,q){ swap(pls[i][0],pls[i][1]); swap(pls[i][2],pls[i][3]); } } calc(); rep(i,h)rev(all(g[i])); rep(i,q){ tie(pls[i][1],pls[i][3])=make_pair(w-pls[i][3]-1,w-pls[i][1]-1); } calc(); rep(i,q)cout << ans[i] << endl; }