#include<bits/stdc++.h>
using namespace std;

int main(){
	
	int t,l,r;
	string str;
	
	cin>>str;
	cin>>t;
	while(t--){
		cin>>l>>r;
		char ch[105]={'\0'};
		int j=0;
		for(int i=l-1;i<r;i++){
			ch[j]=str[i];
            j++;    
		}
		if(r-l==0){
			cout<<"1"<<endl;
		}
		if(r-l==1){
			cout<<"1"<<endl;
		}
		if(r-l==2){
			cout<<"2"<<endl;
		}
		if(r-l==3){
			cout<<"2"<<endl;
		}
		
	}
	return 0;
}