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

long long pref[1'000'000];
long long pref1[1'000'000];
long long prefzdr[1'000'000];
int main ()
{
    freopen("bros.in", "r", stdin);
    freopen("bros.out", "w", stdout);

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    string s;
    cin>>s;
    long long n=s.size();
    for (long long i=1; i<=n; i++)
    {
        if (s[i-1]=='R')
        {
            pref[i]=pref[i-1]+1;
        }
        else
        {
            pref[i]=pref[i-1];
        }
    }

    for (long long i=1; i<=n; i++)
    {
        if (s[i-1]=='L')
        {
            pref1[i]=pref1[i-1]+1;
        }
        else
        {
            pref1[i]=pref1[i-1];
        }
    }

    for (long long i=1; i<=n; i++)
    {
        if (s[i-1]=='L')
        {
            prefzdr[i]=prefzdr[i-1]+pref[i];
        }
        else
        {
            prefzdr[i]=prefzdr[i-1];
        }
    }

    long long q;
    cin>>q;

    for (long long i=0; i<q; i++)
    {
        long long l, r;
        cin>>l>>r;

        //cout<<prefzdr[r]<<endl;

        cout<<prefzdr[r]-prefzdr[l-1]-pref[l-1]*(pref1[r]-pref1[l-1])<<endl;
    }

    return 0;
}