#include <bits/stdc++.h>

using namespace std;

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

int answerQuery(int l, int r) {
    if(l==r)
        return 0;
    else if(r-l==1)
        return 1;
    else return 2;
    // Return the answer for this query modulo 1000000007.
}

int main() {
    string s;
    cin >> s;
   // initialize(s);
    int q;
    cin >> q;
    for(int a0 = 0; a0 < q; a0++){
        int l;
        int r;
        cin >> l >> r;
        int result = answerQuery(l, r);
        cout << result << endl;
    }
    return 0;
}