public static void main ( String [ ] args ) {
  Scanner scan = new Scanner ( System . in ) ;
  int x = scan . nextInt ( ) ;
  int hh = scan . nextInt ( ) ;
  int mm = scan . nextInt ( ) ;
  int result = 0 ;
  while ( ! happy ( hh , mm ) ) {
    if ( mm >= x ) {
      mm -= x ;
    }
    else {
      mm = 60 - ( x - mm ) ;
      if ( hh > 0 ) {
        hh -- ;
      }
      else {
        hh = 23 ;
      }
    }
    result ++ ;
  }
  System . out . println ( result ) ;
}

public static void main ( String [ ] args ) { Scanner scan = new Scanner ( System . in ) ; int x = scan . nextInt ( ) ; int hh = scan . nextInt ( ) ; int mm = scan . nextInt ( ) ; int result = 0 ; while ( ! happy ( hh , mm ) ) { if ( mm >= x ) { mm -= x ; } else { mm = 60 - ( x - mm ) ; if ( hh > 0 ) { hh -- ; } else { hh = 23 ; } } result ++ ; } System . out . println ( result ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (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: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (while_statement condition: (parenthesized_expression (unary_expression operand: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier)))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (decimal_integer_literal) right: (parenthesized_expression (binary_expression left: (identifier) right: (identifier)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (update_expression (identifier)))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))))))) (expression_statement (update_expression (identifier))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))