public static void main ( String [ ] args ) {
  Scanner reader = new Scanner ( System . in ) ;
  int N = reader . nextInt ( ) ;
  String ans = "Three" ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    char ch = reader . next ( ) . charAt ( 0 ) ;
    if ( ch == 'Y' ) {
      ans = "Four" ;
    }
  }
  System . out . print ( ans ) ;
  reader . close ( ) ;
}

public static void main ( String [ ] args ) { Scanner reader = new Scanner ( System . in ) ; int N = reader . nextInt ( ) ; String ans = " Three " ; for ( int i = 0 ; i < N ; i ++ ) { char ch = reader . next ( ) . charAt ( 0 ) ; if ( ch == ' Y ' ) { ans = " Four " ; } } System . out . print ( ans ) ; reader . close ( ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) 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: (string_literal))) (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: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list (decimal_integer_literal))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (character_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (string_literal))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))