import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {
    static int freq[][];
    static void initialize(String s) {
        // This function is called once before all queries.
        int l=s.length();
        freq=new int[26][s.length()];
        for(int i=0;i<26;i++)
        {
            for(int j=0;j<l;j++)
            {
                if(j==0&&((int)(s.charAt(j)))==(97+i))
                    freq[i][j]=1;
                else if(((int)(s.charAt(j)))==(97+i))
                    freq[i][j]=freq[i][j-1]+1;
                else
                    freq[i][j]=freq[i][j-1];
            }
        }
           
                
        
    }

    static int answerQuery(int l, int r) {
        // Return the answer for this query modulo 1000000007.
        int ans=0;
        for(int j=0;j<26;j++)
        {
            int count;
            if(l==1)
                count=freq[j][r-1];
            else
            count=freq[j][r-1]-freq[j][l-2];
            if(count%2==0&&count!=0)
                ans+=count;
            else if(count!=(r-l+1))
                count+=1;
        }
        return ans%1000000007;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String s = in.next();
        initialize(s);
        int q = in.nextInt();
        for(int a0 = 0; a0 < q; a0++){
            int l = in.nextInt();
            int r = in.nextInt();
            int result = answerQuery(l, r);
            System.out.println(result);
        }
        in.close();
    }
}