`Scanner console = new Scanner(System.in);
       String S = console.next();
       int n = console.nextInt();
       int sz = S.length();
       int[] dp = new int[sz];
       for(int i = 0; i < sz - 1; i++) {
        if(S.charAt(i) == S.charAt(i + 1)) dp[i + 1]++;
        dp[i + 1] += dp[i];
        }
         for(int i = 0; i < n; i++) {
          int l = console.nextInt(),
             r = console.nextInt();
         System.out.println(dp[r - 1] - dp[l - 1]);
       }`