#include <bits/stdc++.h>   using namespace std;   const int maxn = 2e5;   int d[maxn];   int w[maxn];   int main() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     int n;     cin >> n;     string s;     cin >> s;     for (int i = 0; i < n; ++i) {       cin >> d[i];     }     int cur = 0;     while (cur >= 0 && cur < n && !w[cur]) {       w[cur] = 1;       cur = cur + (s[cur] ==  <  ? -1 : 1) * d[cur];     }     if (cur < 0 || cur >= n) {       cout <<  FINITE n ;     } else {       cout <<  INFINITE n ;     }     return 0;   }   