#include <bits/stdc++.h>

using namespace std;
int countt[30][30];
void initialize(string s) {
    // This function is called once before all queries.
    for (int i=0;i<30;i++)
        for (int j=0;j<30;j++)
        countt[i][j]=0;
    for (int i=0;i<30;i++){
        if (i==(s[0]-'a')){
            countt[i][0]=1;
        }
    }
    for (int i=1;i<s.size();i++){
        int temp=s[i]-'a';
        for (int j=0;j<30;j++){
            if (j==temp)
                countt[j][i]=countt[j][i-1]+1;
            else
                countt[j][i]=countt[j][i-1];
        }
    }
}

int answerQuery(int l, int r) {
    // Return the answer for this query modulo 1000000007.

    for (int i=l-1;i<r-1;i++){
        for (int j=r-1;j>i-1;j--){
            int countOdd=0;
            for (int k=0;k<30;k++){
                int sum=0;
                if (i==0) sum=countt[k][j];
                else sum=countt[k][j]-countt[k][i-1];
                if (sum%2==1)
                    countOdd++;
                if (countOdd>=2) break;
            }
            if (countOdd==1 || countOdd ==0){
                if (countOdd==1)
                    return 2;
                return 1;
            }
        }
    }
}

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;
}