public static void main ( String ar [ ] ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  String d = sc . next ( ) ;
  char [ ] dir = d . toCharArray ( ) ;
  int [ ] jumps = new int [ n ] ;
  for ( int j = 0 ;
  j < n ;
  j ++ ) jumps [ j ] = sc . nextInt ( ) ;
  HashSet < Integer > visited = new HashSet ( ) ;
  visited . add ( 0 ) ;
  int curr = 0 ;
  while ( true ) {
    if ( dir [ curr ] == '<' ) curr = curr - jumps [ curr ] ;
    else if ( dir [ curr ] == '>' ) curr = curr + jumps [ curr ] ;
    if ( curr < 0 || curr >= n ) {
      System . out . println ( "FINITE" ) ;
      return ;
    }
    else if ( visited . contains ( curr ) ) {
      System . out . println ( "INFINITE" ) ;
      return ;
    }
    visited . add ( curr ) ;
  }
}

public static void main ( String ar [ ] ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; String d = sc . next ( ) ; char [ ] dir = d . toCharArray ( ) ; int [ ] jumps = new int [ n ] ; for ( int j = 0 ; j < n ; j ++ ) jumps [ j ] = sc . nextInt ( ) ; HashSet < Integer > visited = new HashSet ( ) ; visited . add ( 0 ) ; int curr = 0 ; while ( true ) { if ( dir [ curr ] == ' < ' ) curr = curr - jumps [ curr ] ; else if ( dir [ curr ] == ' > ' ) curr = curr + jumps [ curr ] ; if ( curr < 0 || curr >= n ) { System . out . println ( " FINITE " ) ; return ; } else if ( visited . contains ( curr ) ) { System . out . println ( " INFINITE " ) ; return ; } visited . add ( curr ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier) dimensions: (dimensions))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (while_statement condition: (parenthesized_expression (true)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (identifier)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement)) alternative: (if_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))))