#include using namespace std; typedef long long signed int LL; typedef long long unsigned int LU; #define incID(i, l, r) for(LL i = (l) ; i < (r); ++i) #define incII(i, l, r) for(LL i = (l) ; i <= (r); ++i) #define decID(i, l, r) for(LL i = (r) - 1; i >= (l); --i) #define decII(i, l, r) for(LL i = (r) ; i >= (l); --i) #define inc(i, n) incID(i, 0, n) #define inc1(i, n) incII(i, 1, n) #define dec(i, n) decID(i, 0, n) #define dec1(i, n) decII(i, 1, n) #define inID(v, l, r) ((l) <= (v) && (v) < (r)) #define inII(v, l, r) ((l) <= (v) && (v) <= (r)) #define PB push_back #define EB emplace_back #define MP make_pair #define FI first #define SE second #define ALL(v) v.begin(), v.end() #define RALL(v) v.rbegin(), v.rend() template bool setmin (T & a, T b) { if(b < a) { a = b; return true; } else { return false; } } template bool setmax (T & a, T b) { if(b > a) { a = b; return true; } else { return false; } } template bool setmineq(T & a, T b) { if(b <= a) { a = b; return true; } else { return false; } } template bool setmaxeq(T & a, T b) { if(b >= a) { a = b; return true; } else { return false; } } LL mo(LL a, LL b) { assert(b > 0); a %= b; if(a < 0) { a += b; } return a; } LL fl(LL a, LL b) { assert(b > 0); return (a > 0 ? a / b : (a - b + 1) / b); } LL ce(LL a, LL b) { assert(b > 0); return (a < 0 ? a / b : (a + b - 1) / b); } template T gcd(T a, T b) { return (b == 0 ? a : gcd(b, a % b)); } template T lcm(T a, T b) { return a / gcd(a, b) * b; } #define bit(b, i) (((b) >> (i)) & 1) #define BC __builtin_popcountll #define SC static_cast #define SI(v) SC(v.size()) #define SL(v) SC(v.size()) #define RF(e, v) for(auto & e: v) #define ef else if #define UR assert(false) // ---- ---- template class SegmentTree { private: int n, s; vector a; function f; T e; bool ok; public: SegmentTree() { n = 0; } SegmentTree(int nn, function ff, T ee) { init(nn, ff, ee); } void init(int nn, function ff, T ee) { n = nn; f = ff; e = ee; s = 1; while(s < n) { s *= 2; } a = vector(2 * s, e); ok = true; } void shift(int & p) { assert(inID(p, 0, n)); p += s; } void apply(int p, function g) { shift(p); g(a[p]); while(p > 1) { p /= 2; a[p] = f(a[2 * p], a[2 * p + 1]); } } T fold_ID(int l, int r) { assert(ok); assert(inII(l, 0, n)); l += s; assert(inII(r, 0, n)); r += s; r--; T x = e, y = e; while(l <= r) { if(l % 2 == 1) { x = f(x, a[l]); l++; } if(r % 2 == 0) { y = f(a[r], y); r--; } l /= 2; r /= 2; } return f(x, y); } T fold_II(int l, int r) { return fold_ID(l + 0, r + 1); } T fold_CI(int l, int r) { return fold_ID(l + 1, r + 1); } T fold_CD(int l, int r) { return fold_ID(l + 1, r + 0); } const T & operator[](int p) { shift(p); return a[p]; } T & ref(int p) { shift(p); ok = false; return a[p]; } void update() { dec(i, s) { a[i] = f(a[2 * i], a[2 * i + 1]); } ok = true; } }; #define OP(s) [&](auto & A, auto & B) { return s; } #define AP(s) [&](auto & A) { s; } // ---- ---- typedef array A; LL MOD = 1e9 + 7; A F(A x, A y) { if(x[3] == -1) { return y; } if(y[3] == -1) { return x; } deque qx, qy; inc(i, 3) { if(x[i] != -1) { qx.PB(x[i]); } } inc(i, 3) { if(y[i] != -1) { qy.PB(y[i]); } } if(x[3] == 1) { // '*' LL vx = qx.back(); qx.pop_back(); LL vy = qy.front(); qy.pop_front(); qx.PB(vx * vy % MOD); } for(auto && e: qy) { qx.PB(e); } if(qx.size() == 1) { return { -1, qx[0], -1, y[3] }; } else { LL xf = qx.front(); qx.pop_front(); LL xb = qx.back(); qx.pop_back(); LL sum = 0; for(auto && e: qx) { (sum += e) %= MOD; } return { xf, sum, xb, y[3] }; } } LL val(A a) { LL sum = 0; inc(i, 3) { if(a[i] != -1) { (sum += a[i]) %= MOD; } } return sum; } int n, q; SegmentTree st; int main() { cin >> n; vector di; vector op; inc(i, n) { string s; cin >> s; if(i % 2 == 0) { di.PB(s[0] - '0'); } else { op.PB(s[0] == '+' ? 0 : 1); } } st.init(di.size(), F, { 0, 0, 0, -1 }); inc(i, di.size()) { st.ref(i) = { -1, di[i], -1, op[i] }; } st.update(); cin >> q; inc(i, q) { string s; int x, y; cin >> s >> x >> y; if(s == "!") { if(x % 2 == 1) { // 数字 x /= 2; y /= 2; LL xx = st[x][1]; LL yy = st[y][1]; st.apply(x, AP(A[1] = yy)); st.apply(y, AP(A[1] = xx)); } else { // 演算子 x = x / 2 - 1; y = y / 2 - 1; LL xx = st[x][3]; LL yy = st[y][3]; st.apply(x, AP(A[3] = yy)); st.apply(y, AP(A[3] = xx)); } } else { x /= 2; y /= 2; y++; cout << val(st.fold_ID(x, y)) << "\n"; } } return 0; }