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

int main()
{
    vector<int> answer;

    string temp;
    cin>>temp;

    int testcases;
    cin>>testcases;
    int x=0;

    for(x=0;x<testcases;x++)
    {
        int l,r;
        cin>>l>>r;
        l=l-1;
        r=r-1;
        if(l==r)
         answer.push_back(0);
        else if(r==(l+1))
            {
                if(temp[l]==temp[r])
                answer.push_back(1);
                else
                answer.push_back(0);
            }
        else if(r==(l+2))
        {
            char x=temp[l];
            char y=temp[l+1];
            char z=temp[l+2];


            if(x!=y && x!=z && y!=z)
            {
                answer.push_back(0);
            }
            else if((x==y && y!=z) || (x==z && x!=y) || (y==z && x!=y))
            {
                answer.push_back(2);
            }
            else (answer.push_back(1));
        }
        else if(r==(l+3))
        {
            map<char,int> mymap;
            int m=l;
            for(m=l;m<=r;m++)
            {
                mymap[temp[m]]+=1;
            }
            if(mymap[l]==1 || mymap[l+1]==1 || mymap[l+2]==1 || mymap[l+3]==1)
            {
                answer.push_back(0);
            }
            else if(mymap[l]==4)
            {
                answer.push_back(1);
            }
            else
            {
                answer.push_back(2);
            }



        }
    }
    for(x=0;x<answer.size();x++)
    {
        cout<<answer[x]<<endl;
    }
    return 0;
}