import java.lang.reflect.Array;
        import java.util.*;
        import java.text.*;
        import java.math.*;
        import java.util.regex.*;

public class PalindromeRe {
    static String ss="";
    static void initialize(String s) {
        // This function is called once before all queries.
        ss=s;
    }

    static int answerQuery(int l, int r) {
        // Return the answer for this query modulo 1000000007.
        l--;
        String str=ss.substring(l,r);
        //System.out.println(str);
        char[] ch= str.toCharArray();
        Arrays.sort(ch);
        int cnt=0;
        for(int i=0;i<ch.length-1;i++){
            if(ch[i]==ch[i+1]){
                cnt++;
            }
        }
        if(cnt*2==ch.length)return cnt;
        int tt=ch.length-(cnt*2);
      return tt*cnt;
    }

    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();
    }
}