#include <bits/stdc++.h>
using namespace std;
int main() {
int n , x ,y;
cin >> n >> x >> y;
string s;
cin >> s ;
int a = s[x-1] - '0';
int b = s[y-1] - '0';
if(a%b == 0 || b%a == 0 )
{
cout << "YES" << endl;
}
else
{
cout << "NO" << endl;
}
return 0;
}
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