#include <bits/stdc++.h>
using namespace std;
const int IN = 2e5 + 7;
int sum[IN];
int main() {
  string str;
  cin >> str;
  int n;
  scanf("%d", &n);
  memset(sum, 0, sizeof(sum));
  if (str[0] == str[1])
    sum[0] = 1;
  else
    sum[0] = 0;
  int k = str.size();
  for (int i = 1; i < k - 1; i++) {
    if (str[i] == str[i + 1]) {
      sum[i] = sum[i - 1] + 1;
    } else {
      sum[i] = sum[i - 1];
    }
  }
  sum[k - 1] = sum[k - 2];
  int l, r;
  for (int i = 0; i < n; i++) {
    scanf("%d%d", &l, &r);
    if (l != 1)
      printf("%d\n", sum[r - 2] - sum[l - 2]);
    else
      printf("%d\n", sum[r - 2]);
  }
}
