#include <bits/stdc++.h>   using namespace std;   int main() {     int n;     while (scanf( %d , &n) == 1) {       string s;       cin >> s;       s =  #  + s;       bool used[n + 1];       memset(used, 0, sizeof used);       int d[n + 1];       for (int i = 1; i <= n; i++) {         scanf( %d , d + i);       }       int pos = 1;       bool ok = false;       while (!used[pos]) {         used[pos] = true;         if (s[pos] ==  < ) {           pos -= d[pos];         } else {           pos += d[pos];         }         if (pos <= 0 || pos > n) {           ok = true;           break;         }       }       if (ok) {         puts( FINITE );       } else {         puts( INFINITE );       }     }   }   