#include <string> #include <vector> #include<iostream> #include<cstdio> #include<cstdlib> #include<stack> #include<queue> #include<cmath> #include<algorithm> #include<functional> #include<list> #include<deque> #include<bitset> #include<set> #include<map> #include<unordered_map> #include<unordered_set> #include<cstring> #include<sstream> #include<complex> #include<iomanip> #include<numeric> #include<cassert> #define X first #define Y second #define pb push_back #define rep(X,Y) for (int (X) = 0;(X) < (Y);++(X)) #define reps(X,S,Y) for (int (X) = S;(X) < (Y);++(X)) #define rrep(X,Y) for (int (X) = (Y)-1;(X) >=0;--(X)) #define rreps(X,S,Y) for (int (X) = (Y)-1;(X) >= (S);--(X)) #define repe(X,Y) for ((X) = 0;(X) < (Y);++(X)) #define peat(X,Y) for (;(X) < (Y);++(X)) #define all(X) (X).begin(),(X).end() #define rall(X) (X).rbegin(),(X).rend() #define eb emplace_back #define UNIQUE(X) (X).erase(unique(all(X)),(X).end()) #define Endl endl using namespace std; typedef long long ll; typedef pair<int,int> pii; typedef pair<ll,ll> pll; template<class T> using vv=vector<vector<T>>; template<class T> ostream& operator<<(ostream &os, const vector<T> &t) { os<<"{"; rep(i,t.size()) {os<<t[i]<<",";} os<<"}"<<endl; return os;} template<class T,size_t n> ostream& operator<<(ostream &os, const array<T,n> &t) { os<<"{"; rep(i,n) {os<<t[i]<<",";} os<<"}"<<endl; return os;} template<class S, class T> ostream& operator<<(ostream &os, const pair<S,T> &t) { return os<<"("<<t.first<<","<<t.second<<")";} template<class S, class T,class U> ostream& operator<<(ostream &os, const tuple<S,T,U> &t) { return os<<"("<<get<0>(t)<<","<<get<1>(t)<<","<<get<2>(t)<<")";} template<class S, class T,class U,class V> ostream& operator<<(ostream &os, const tuple<S,T,U,V> &t) { return os<<"("<<get<0>(t)<<","<<get<1>(t)<<","<<get<2>(t)<<","<<get<3>(t)<<")";} template<class T> inline bool MX(T &l,const T &r){return l<r?l=r,1:0;} template<class T> inline bool MN(T &l,const T &r){return l>r?l=r,1:0;} //#undef NUIP #ifdef NUIP #define out(args...){vector<string> a_r_g_s=s_p_l_i_t(#args, ','); e_r_r(a_r_g_s.begin(), args); } vector<string> s_p_l_i_t(const string &s, char c){vector<string> v;int d=0,f=0;string t;for(char c:s){if(!d&&c==',')v.pb(t),t="";else t+=c;if(c=='\"'||c=='\'')f^=1;if(!f&&c=='(')++d;if(!f&&c==')')--d;}v.pb(t);return move(v);} void e_r_r(vector<string>::iterator it) {} template<typename T, typename... Args> void e_r_r(vector<string>::iterator it, T a, Args... args){ if(*it==" 1"||*it=="1") cerr<<endl; else cerr << it -> substr((*it)[0] == ' ', it -> length()) << " = " << a << ", "; e_r_r(++it, args...);} #else #define out #endif template<typename T>vector<T> table(int n, T v){ return vector<T>(n, v);} template <class... Args> auto table(int n, Args... args){auto val = table(args...); return vector<decltype(val)>(n, move(val));} const ll MOD=1e9+7; ll modpow(ll r,ll n,ll m=MOD){ ll re=1,d=r%m; if(n<0)(n%=m-1)+=m-1; for(;n;n/=2){ if(n&1)(re*=d)%=m; (d*=d)%=m; } return re; } template <int mod=MOD> struct modInt{ int v; modInt(int v=0):v(v){} modInt operator+(const modInt &n){return v+n.v<mod ? v+n.v : v+n.v-mod;} modInt operator-(const modInt &n){return v-n.v<0 ? v-n.v+mod : v-n.v;} modInt operator*(const modInt &n){return ll(v)*n.v%mod;} modInt operator/(const modInt &n){return ll(v)*modpow(n.v%mod,-1,mod)%mod;} modInt operator+(const ll &n){return v+n<mod ? v+n : v+n-mod;} modInt operator-(const ll &n){return v-n<0 ? v-n+mod : v-n;} modInt operator*(const ll &n){return ll(v)*(n%mod)%mod;} modInt operator/(const ll &n){return ll(v)*modpow(n%mod,-1,mod)%mod;} modInt& operator+=(const modInt &n){v+=n.v; if(v>=mod) v-=mod; return *this;} modInt& operator-=(const modInt &n){v-=n.v; if(v<0) v+=mod; return *this;} modInt& operator*=(const modInt &n){v=ll(v)*n.v%mod; return *this;} modInt& operator/=(const modInt &n){v=ll(v)*modpow(n.v,-1,mod)%mod; return *this;} modInt& operator+=(const ll &n){v+=n; if(v>=mod) v-=mod; return *this;} modInt& operator-=(const ll &n){v-=n; if(v<0) v+=mod; return *this;} modInt& operator*=(const ll &n){v=ll(v)*n%mod; return *this;} modInt& operator/=(const ll &n){v=ll(v)*modpow(n,-1,mod)%mod; return *this;} }; template<int mod> ostream& operator<<(ostream &os,const modInt<mod> &n){return os<<n.v;}; template<int mod> modInt<mod> operator+(const ll &n,const modInt<mod> &m){return m.v+n<mod ? m.v+n : m.v+n-mod;} template<int mod> modInt<mod> operator-(const ll &n,const modInt<mod> &m){return n-m.v<0 ? n-m.v+mod : n-m.v;} template<int mod> modInt<mod> operator*(const ll &n,const modInt<mod> &m){return ll(m.v)*(n%mod)%mod;} template<int mod> modInt<mod> operator/(const ll &n,const modInt<mod> &m){return ll(m.v)*modpow(n%mod,-1,mod)%mod;} typedef modInt<MOD> mint; template <int mod> modInt<mod> modpow(modInt<mod> r,ll n){ modInt<mod> re(1); if(n<0)(n%=mod-1)+=mod-1; for(;n;n/=2){if(n&1) re*=r; r*=r;} return re;} vector<mint> fact,finv,inv; mint comb(ll n,ll r){ if(n<r||r<0)return 0; return fact[n]*finv[n-r]*finv[r];} class Doralion{ void Modinvs(vector<mint> &re,int n){ re.resize(n+1); re[1]=1; for(int i=2;i<=n;++i)re[i]=re[MOD%i]*(MOD-MOD/i);} void Facts(vector<mint> &re,int n){ re.resize(n+1); re[0]=1; rep(i,n)re[i+1]=re[i]*(i+1);} void Factinvs(vector<mint> &re,const vector<mint> &inv,int n){ re.resize(n+1); re[0]=1; rep(i,n)re[i+1]=re[i]*inv[i+1];} public: Doralion(int n){ Modinvs(inv,n); Facts(fact,n); Factinvs(finv,inv,n);} } doralion(212345); int sum[26][112345]; int main(){ ios_base::sync_with_stdio(false); cout<<fixed<<setprecision(0); string s; cin>>s; int n=s.size(); rep(i,n) sum[s[i]-'a'][i+1]++; rep(i,26)rep(j,n) sum[i][j+1]+=sum[i][j]; int q; cin>>q; while(q--){ int l,r; cin>>l>>r; --l; array<int,26> cnt; rep(i,26) cnt[i]=sum[i][r]-sum[i][l]; int s=0; rep(i,26) s+=cnt[i]/2; mint re=fact[s]; rep(i,26) re*=finv[cnt[i]/2]; int odd=0; rep(i,26)if(cnt[i]%2) ++odd; if(odd) re*=odd; cout<<re<<endl; } return 0; }