#include <bits/stdc++.h>
using namespace std;

#define ll long long int 
#define mod 1000000007 
#define loop(i,a,b) for(int i=a;i<b;i++)
#define endl "\n"

int main() { 
 string s; ll l,r,i,j,k,q;
 cin>>s>>q;
 while(q--)
 {
    cin>>l>>r; l--; r--; ll a[30]={0};
    if(r-l==0) {cout<<1<<endl; continue ;}
    if(r-l==1)
    {
      if(s[r]==s[l]) cout<<1<<endl;
      else cout<<2<<endl;
      continue ;
    }
    if(r-l==2)
    { 
     if(s[l]!=s[l+1]&&s[l+1]!=a[r]&&s[l]!=s[r])  
     cout<<3<<endl;
     else cout<<1<<endl; 
    }
     if(r-l==3)
    {
      cout<<2<<endl;   
    }
 }
    return 0;
}