#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

/*void initialize(char* s) {
    
    // This function is called once before all queries.
}*/

int answerQuery(int l, int r,char* s) {
    char k[r];
    int i,a=0,c=1,j;
    for(i=l;i<=r;i++)
    {
        k[a]=s[i];
        a++;
    }
    for(i=0;i<a;i++)
    {
      for(j=i+1;j<a;j++)
      {
          if(k[i]==k[j])
              c++;
      }
    }
    return c%(10^9+7);
    // Return the answer for this query modulo 1000000007.
}

int main() {
    char* s = (char *)malloc(512000 * sizeof(char));
    scanf("%s", s);
    //initialize(s);
    int q; 
    scanf("%i", &q);
    for(int a0 = 0; a0 < q; a0++){
        int l; 
        int r; 
        scanf("%i %i", &l, &r);
        int result = answerQuery(l, r, s);
        printf("%d\n", result);
    }
    return 0;
}