Ilya the Lion wants to help all his friends with passing exams. They need to solve the following problem to pass the IT exam.

You've got string *s* = *s*<sub class="lower-index">1</sub>*s*<sub class="lower-index">2</sub>... *s*<sub class="lower-index">*n*</sub> (*n* is the length of the string), consisting only of characters "." and "#" and *m* queries. Each query is described by a pair of integers *l*<sub class="lower-index">*i*</sub>, *r*<sub class="lower-index">*i*</sub> (1 ≤ *l*<sub class="lower-index">*i*</sub> &lt; *r*<sub class="lower-index">*i*</sub> ≤ *n*). The answer to the query *l*<sub class="lower-index">*i*</sub>, *r*<sub class="lower-index">*i*</sub> is the number of such integers *i* (*l*<sub class="lower-index">*i*</sub> ≤ *i* &lt; *r*<sub class="lower-index">*i*</sub>), that *s*<sub class="lower-index">*i*</sub> = *s*<sub class="lower-index">*i* + 1</sub>.

Ilya the Lion wants to help his friends but is there anyone to help him? Help Ilya, solve the problem.
The first line contains string *s* of length *n* (2 ≤ *n* ≤ 10<sup class="upper-index">5</sup>). It is guaranteed that the given string only consists of characters "." and "#".

The next line contains integer *m* (1 ≤ *m* ≤ 10<sup class="upper-index">5</sup>) — the number of queries. Each of the next *m* lines contains the description of the corresponding query. The *i*-th line contains integers *l*<sub class="lower-index">*i*</sub>, *r*<sub class="lower-index">*i*</sub> (1 ≤ *l*<sub class="lower-index">*i*</sub> &lt; *r*<sub class="lower-index">*i*</sub> ≤ *n*).
def SepararInput(Inp):
    termo = ''
    arr = []
    for i in Inp:
        if i != ' ':
            termo += i
        else:
            arr.append(int(termo))
            termo = ''
    arr.append(int(termo))
    return arr

def solve(l, q):
    cont = 0
    inicio, fim = int(q[0]), int(q[1])
    for i in range(inicio-1, fim-1):
        if l[i] == l[i+1]: cont += 1

    return cont

def main():
    str = input()
    n = int(input())
    for i in range(n):
        query = list(input())
        new_query = SepararInput(query)
        print(solve(str, new_query))