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

public class Solution {

    static long initialize(String s) {
      int ar[]=new int[26];int r=s.length();if(r==1){long p=1;return p;}
        for(int i=0;i<26;i++)ar[i]=0;
        for(int i=0;i<r;i++){int y=s.charAt(i);
                            y=y-97;
                             ar[y]=ar[y]+1;
                             
                            }long count=0;
        for(int i=0;i<26;i++){
            if(ar[i]!=0){
                if(ar[i]%2==0){count+=(long)ar[i];}
                else{count+=(long)ar[i]-1;}
                
                
                
            }
            
            
        }
        count=count%1000000007;
        return count;
        
        
       
    }

    static long answerQuery(int l, int r,String d) {
     
        String s=d.substring(l,r);
        long res=initialize(s);
        
        return res;
    }

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