743A. Vladik and flights codeforces

#include<bits/stdc++.h>
using namespace std;
char str[100005];
int main()
{int n,a,b;cin>>n>>a>>b;for(int i=1;i<=n;i++){cin>>str[i];}if(str[a]!=str[b]){cout<<1<<endl;}else{cout<<0<<endl;}return 0;
}