public static void main ( String [ ] args ) {
  Scanner scan = new Scanner ( System . in ) ;
  int r = scan . nextInt ( ) ;
  int g = scan . nextInt ( ) ;
  int b = scan . nextInt ( ) ;
  int time = 0 ;
  while ( r > 0 || g > 0 || b > 0 ) {
    if ( time % 3 == 0 ) r -= 2 ;
    else if ( time % 3 == 1 ) g -= 2 ;
    else if ( time % 3 == 2 ) b -= 2 ;
    time ++ ;
  }
  time += 30 - 1 ;
  System . out . println ( time ) ;
}

public static void main ( String [ ] args ) { Scanner scan = new Scanner ( System . in ) ; int r = scan . nextInt ( ) ; int g = scan . nextInt ( ) ; int b = scan . nextInt ( ) ; int time = 0 ; while ( r > 0 || g > 0 || b > 0 ) { if ( time % 3 == 0 ) r -= 2 ; else if ( time % 3 == 1 ) g -= 2 ; else if ( time % 3 == 2 ) b -= 2 ; time ++ ; } time += 30 - 1 ; System . out . println ( time ) ; }
(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 (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal)))))) (expression_statement (update_expression (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (decimal_integer_literal) right: (decimal_integer_literal)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))