#include <bits/stdc++.h>
using namespace std;
#define MAX (int)1e6+2
struct Node{
int op;
int open;
int close;
};
Node st[MAX*4];
string s;
Node operator + (Node l, Node r){
Node res;
int tmp = min(l.open,r.close);
res.op = l.op + r.op + tmp;
res.open = l.open + r.open - tmp;
res.close = l.close + r.close - tmp;
return res;
}
void build(int id, int l,int r){
if(l==r){
if(s[l]=='(') st[id]={0,1,0};
else st[id]={0,0,1};
return;
}
int m=(l+r)/2;
build(id*2,l,m);
build(id*2+1,m+1,r);
st[id]=st[id*2]+st[id*2+1] ;
}
Node query(int id,int l,int r,int u,int v){
if(v<l || r>u){
Node x={0,0,0};
return x;
}
if(u<=l && r<=v) return st[id];
int mid = (l+r)/2;
Node x = query(id*2,l,mid,u,v)+query(id*2+1,mid+1,r,u,v);
return x;
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
string s1;
cin>>s1;
s="0"+s1;
int t;
cin>>t;
int n = s1.size();
build(1,1,n);
for(int i=1;i<=29;i++){
cout<<i<<' '<<st[i].op<<'\t';
}
while(t--){
int l,r;
cin>>l>>r;
Node x = query(1,1,n,l,r);
cout<<x.op<<endl;
}
}
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}