using System; using System.Collections.Generic; using System.Linq; using System.Linq.Expressions; using System.IO; using System.Text; using System.Diagnostics; using static util; using P = pair; using Binary = System.Func; using Unary = System.Func; class Program { static StreamWriter sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }; static Scan sc = new Scan(); const int M = 1000000007; const long LM = (long)1e18; const double eps = 1e-11; static readonly int[] dd = { 0, 1, 0, -1, 0 }; static void Main() { int n = sc.Int; var c = sc.StrArr.Select(x => x[0]).ToArray(); var nums = new int[n / 2 + 1]; var isplus = new bool[n / 2]; var sg = new Segtree(n / 2 + 1, node.f, new node(1)); for (int i = 0; i < n; i += 2) { nums[i / 2] = c[i] - '0'; if (i > 0) isplus[i / 2 - 1] = c[i - 1] == '+'; if (i == 0 || isplus[i / 2 - 1]) sg.assign(i / 2, new node(1, 0, nums[i / 2])); else sg.assign(i / 2, new node(nums[i / 2])); } sg.all_update(); int q = sc.Int; for (int i = 0; i < q; i++) { char t; int x, y; sc.Multi(out t, out x, out y); --x; --y; if (t == '!') { if (x % 2 == 0) { x /= 2; y /= 2; if (nums[x] == nums[y]) continue; int tmp = nums[x]; nums[x] = nums[y]; sg.look(x).update(nums[y]); nums[y] = tmp; sg.look(y).update(tmp); sg.update(x); sg.update(y); } else { x /= 2; y /= 2; if (isplus[x] == isplus[y]) continue; isplus[x] ^= true; isplus[y] ^= true; sg.look(x + 1).update(); sg.look(y + 1).update(); sg.update(x + 1); sg.update(y + 1); } } else { x /= 2; y /= 2; Prt(sg.run(x + 1, y + 1).calc(nums[x])); } } sw.Flush(); } class node { long l, m, r; bool single; public node(long a) { single = true; l = a; m = r = 0; } public node(long l, long m, long r) { single = false; this.l = l; this.m = m; this.r = r; } public void update(long a) { if (single) l = a; else r = a; } public void update() { if (single) { single = false; r = l; l = 1; m = 0; } else { single = true; l = r; m = r = 0; } } public long calc(int a) => (a * l + m + r) % M; public static node f(node l, node r) { if (l.single && r.single) return new node(l.l * r.l % M); else if (l.single) return new node(l.l * r.l % M, r.m, r.r); else if (r.single) return new node(l.l, l.m, l.r * r.l % M); else return new node(l.l, (l.m + l.r * r.l + r.m) % M, r.r); } } static void DBG(string a) => Console.WriteLine(a); static void DBG(IEnumerable a) => DBG(string.Join(" ", a)); static void DBG(params object[] a) => DBG(string.Join(" ", a)); static void Prt(string a) => sw.WriteLine(a); static void Prt(IEnumerable a) => Prt(string.Join(" ", a)); static void Prt(params object[] a) => Prt(string.Join(" ", a)); } class pair : IComparable> where T : IComparable where U : IComparable { public T v1; public U v2; public pair(T v1, U v2) { this.v1 = v1; this.v2 = v2; } public int CompareTo(pair a) => v1.CompareTo(a.v1) != 0 ? v1.CompareTo(a.v1) : v2.CompareTo(a.v2); public override string ToString() => v1 + " " + v2; } static class util { public static pair make_pair(this IList l) where T : IComparable => make_pair(l[0], l[1]); public static pair make_pair(T v1, U v2) where T : IComparable where U : IComparable => new pair(v1, v2); public static T sqr(T a) => Operator.Multiply(a, a); public static T Max(params T[] a) => a.Max(); public static T Min(params T[] a) => a.Min(); public static void swap(ref T a, ref T b) { var t = a; a = b; b = t; } public static void swap(this IList a, int i, int j) { var t = a[i]; a[i] = a[j]; a[j] = t; } public static T[] copy(this IList a) { var ret = new T[a.Count]; for (int i = 0; i < a.Count; i++) ret[i] = a[i]; return ret; } } static class Operator { static readonly ParameterExpression x = Expression.Parameter(typeof(T), "x"); static readonly ParameterExpression y = Expression.Parameter(typeof(T), "y"); public static readonly Func Add = Lambda(Expression.Add); public static readonly Func Subtract = Lambda(Expression.Subtract); public static readonly Func Multiply = Lambda(Expression.Multiply); public static readonly Func Divide = Lambda(Expression.Divide); public static readonly Func Plus = Lambda(Expression.UnaryPlus); public static readonly Func Negate = Lambda(Expression.Negate); public static Func Lambda(Binary op) => Expression.Lambda>(op(x, y), x, y).Compile(); public static Func Lambda(Unary op) => Expression.Lambda>(op(x), x).Compile(); } class Scan { public int Int => int.Parse(Str); public long Long => long.Parse(Str); public double Double => double.Parse(Str); public string Str => Console.ReadLine().Trim(); public pair Pair() where T : IComparable where U : IComparable { T a; U b; Multi(out a, out b); return make_pair(a, b); } public int[] IntArr => StrArr.Select(int.Parse).ToArray(); public long[] LongArr => StrArr.Select(long.Parse).ToArray(); public double[] DoubleArr => StrArr.Select(double.Parse).ToArray(); public string[] StrArr => Str.Split(new []{' '}, System.StringSplitOptions.RemoveEmptyEntries); bool eq() => typeof(T).Equals(typeof(U)); T ct(U a) => (T)Convert.ChangeType(a, typeof(T)); T cv(string s) => eq() ? ct(int.Parse(s)) : eq() ? ct(long.Parse(s)) : eq() ? ct(double.Parse(s)) : eq() ? ct(s[0]) : ct(s); public void Multi(out T a) => a = cv(Str); public void Multi(out T a, out U b) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); } public void Multi(out T a, out U b, out V c) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); c = cv(ar[2]); } public void Multi(out T a, out U b, out V c, out W d) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); c = cv(ar[2]); d = cv(ar[3]); } public void Multi(out T a, out U b, out V c, out W d, out X e) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); c = cv(ar[2]); d = cv(ar[3]); e = cv(ar[4]); } public void Multi(out T a, out U b, out V c, out W d, out X e, out Y f) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); c = cv(ar[2]); d = cv(ar[3]); e = cv(ar[4]); f = cv(ar[5]); } } static class mymath { public static long Mod = 1000000007; public static bool isprime(long a) { if (a < 2) return false; for (long i = 2; i * i <= a; i++) if (a % i == 0) return false; return true; } public static bool[] sieve(int n) { var p = new bool[n + 1]; for (int i = 2; i <= n; i++) p[i] = true; for (int i = 2; i * i <= n; i++) if (p[i]) for (int j = i * i; j <= n; j += i) p[j] = false; return p; } public static List getprimes(int n) { var prs = new List(); var p = sieve(n); for (int i = 2; i <= n; i++) if (p[i]) prs.Add(i); return prs; } public static long[][] E(int n) { var ret = new long[n][]; for (int i = 0; i < n; i++) { ret[i] = new long[n]; ret[i][i] = 1; } return ret; } public static double[][] dE(int n) { var ret = new double[n][]; for (int i = 0; i < n; i++) { ret[i] = new double[n]; ret[i][i] = 1; } return ret; } public static long[][] pow(long[][] A, long n) { if (n == 0) return E(A.Length); var t = pow(A, n / 2); if ((n & 1) == 0) return mul(t, t); return mul(mul(t, t), A); } public static double[][] pow(double[][] A, long n) { if (n == 0) return dE(A.Length); var t = pow(A, n / 2); if ((n & 1) == 0) return mul(t, t); return mul(mul(t, t), A); } public static double dot(double[] x, double[] y) { int n = x.Length; double ret = 0; for (int i = 0; i < n; i++) ret += x[i] * y[i]; return ret; } public static double _dot(double[] x, double[] y) { int n = x.Length; double ret = 0, r = 0; for (int i = 0; i < n; i++) { double s = ret + (x[i] * y[i] + r); r = (x[i] * y[i] + r) - (s - ret); ret = s; } return ret; } public static long dot(long[] x, long[] y) { int n = x.Length; long ret = 0; for (int i = 0; i < n; i++) ret = (ret + x[i] * y[i]) % Mod; return ret; } public static T[][] trans(T[][] A) { int n = A[0].Length, m = A.Length; var ret = new T[n][]; for (int i = 0; i < n; i++) { ret[i] = new T[m]; for (int j = 0; j < m; j++) ret[i][j] = A[j][i]; } return ret; } public static double[] mul(double a, double[] x) { int n = x.Length; var ret = new double[n]; for (int i = 0; i < n; i++) ret[i] = a * x[i]; return ret; } public static long[] mul(long a, long[] x) { int n = x.Length; var ret = new long[n]; for (int i = 0; i < n; i++) ret[i] = a * x[i] % Mod; return ret; } public static double[] mul(double[][] A, double[] x) { int n = A.Length; var ret = new double[n]; for (int i = 0; i < n; i++) ret[i] = dot(x, A[i]); return ret; } public static long[] mul(long[][] A, long[] x) { int n = A.Length; var ret = new long[n]; for (int i = 0; i < n; i++) ret[i] = dot(x, A[i]); return ret; } public static double[][] mul(double a, double[][] A) { int n = A.Length; var ret = new double[n][]; for (int i = 0; i < n; i++) ret[i] = mul(a, A[i]); return ret; } public static long[][] mul(long a, long[][] A) { int n = A.Length; var ret = new long[n][]; for (int i = 0; i < n; i++) ret[i] = mul(a, A[i]); return ret; } public static double[][] mul(double[][] A, double[][] B) { int n = A.Length; var Bt = trans(B); var ret = new double[n][]; for (int i = 0; i < n; i++) ret[i] = mul(Bt, A[i]); return ret; } public static long[][] mul(long[][] A, long[][] B) { int n = A.Length; var Bt = trans(B); var ret = new long[n][]; for (int i = 0; i < n; i++) ret[i] = mul(Bt, A[i]); return ret; } public static long[] add(long[] x, long[] y) { int n = x.Length; var ret = new long[n]; for (int i = 0; i < n; i++) ret[i] = (x[i] + y[i]) % Mod; return ret; } public static long[][] add(long[][] A, long[][] B) { int n = A.Length; var ret = new long[n][]; for (int i = 0; i < n; i++) ret[i] = add(A[i], B[i]); return ret; } public static long pow(long a, long b) { if (a >= Mod) return pow(a % Mod, b); if (a == 0) return 0; if (b == 0) return 1; var t = pow(a, b / 2); if ((b & 1) == 0) return t * t % Mod; return t * t % Mod * a % Mod; } public static long inv(long a) => pow(a, Mod - 2); public static long gcd(long a, long b) { while (b > 0) { var t = a % b; a = b; b = t; } return a; } // a x + b y = gcd(a, b) public static long extgcd(long a, long b, out long x, out long y) { long g = a; x = 1; y = 0; if (b > 0) { g = extgcd(b, a % b, out y, out x); y -= a / b * x; } return g; } public static long lcm(long a, long b) => a / gcd(a, b) * b; static long[] facts; public static long[] setfacts(int n) { facts = new long[n + 1]; facts[0] = 1; for (int i = 0; i < n; i++) facts[i + 1] = facts[i] * (i + 1) % Mod; return facts; } public static long comb(int n, int r) { if (n < 0 || r < 0 || r > n) return 0; if (n - r < r) r = n - r; if (r == 0) return 1; if (r == 1) return n; if (facts != null && facts.Length > n) return facts[n] * inv(facts[r]) % Mod * inv(facts[n - r]) % Mod; int[] numer = new int[r], denom = new int[r]; for (int k = 0; k < r; k++) { numer[k] = n - r + k + 1; denom[k] = k + 1; } for (int p = 2; p <= r; p++) { int piv = denom[p - 1]; if (piv > 1) { int ofst = (n - r) % p; for (int k = p - 1; k < r; k += p) { numer[k - ofst] /= piv; denom[k] /= piv; } } } long ret = 1; for (int k = 0; k < r; k++) if (numer[k] > 1) ret = ret * numer[k] % Mod; return ret; } public static long[][] getcombs(int n) { var ret = new long[n + 1][]; for (int i = 0; i <= n; i++) { ret[i] = new long[i + 1]; ret[i][0] = ret[i][i] = 1; for (int j = 1; j < i; j++) ret[i][j] = (ret[i - 1][j - 1] + ret[i - 1][j]) % Mod; } return ret; } // nC0, nC2, ..., nCn public static long[] getcomb(int n) { var ret = new long[n + 1]; ret[0] = 1; for (int i = 0; i < n; i++) ret[i + 1] = ret[i] * (n - i) % Mod * inv(i + 1) % Mod; return ret; } } class Segtree { int n, s, t; T[] tr; Func f; T exnum; // expect : f(ex, ex) = ex public Segtree(int m, Func f, T ex) { this.f = f; this.exnum = ex; n = 1; while (n < m) n <<= 1; tr = new T[(n << 1) - 1]; for (int i = 0; i < tr.Length; i++) tr[i] = ex; } public Segtree(int m, T ini, Func f, T ex) : this(m, f, ex) { for (int i = 0; i < m; ++i) assign(i, ini); all_update(); } public void assign(int j, T x) => tr[j + n - 1] = x; public void update(int j, T x) { assign(j, x); update(j); } public void update(int j) { int i = j + n - 1; while (i > 0) { i = i - 1 >> 1; tr[i] = f(tr[i << 1 | 1], tr[i + 1 << 1]); } } public void all_update() { for (int i = n - 2; i >= 0; i--) tr[i] = f(tr[i << 1 | 1], tr[i + 1 << 1]); } public T look(int i) => tr[i + n - 1]; // [s, t) public T run(int s, int t) { this.s = s; this.t = t; return q(0, 0, n); } T q(int k, int l, int r) => r <= s || t <= l ? exnum : s <= l && r <= t ? tr[k] : f(q(k << 1 | 1, l, l + r >> 1), q(k + 1 << 1, l + r >> 1, r)); }