public static void main ( String args [ ] ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  int a1 = 4 , a2 = 4 , a3 = 4 , a4 = 4 , a5 = 4 , a6 = 4 , a7 = 4 , a8 = 4 , a9 = 4 , a10 = 15 ;
  int x = n - 10 ;
  if ( x == 0 || n < 10 || x > 11 ) System . out . println ( 0 ) ;
  else {
    if ( x == 1 || x == 11 ) System . out . println ( a1 ) ;
    if ( x == 2 ) System . out . println ( a2 ) ;
    if ( x == 3 ) System . out . println ( a3 ) ;
    if ( x == 4 ) System . out . println ( a4 ) ;
    if ( x == 5 ) System . out . println ( a5 ) ;
    if ( x == 6 ) System . out . println ( a6 ) ;
    if ( x == 7 ) System . out . println ( a7 ) ;
    if ( x == 8 ) System . out . println ( a8 ) ;
    if ( x == 9 ) System . out . println ( a9 ) ;
    if ( x == 10 ) System . out . println ( a10 ) ;
  }
}

public static void main ( String args [ ] ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; int a1 = 4 , a2 = 4 , a3 = 4 , a4 = 4 , a5 = 4 , a6 = 4 , a7 = 4 , a8 = 4 , a9 = 4 , a10 = 15 ; int x = n - 10 ; if ( x == 0 || n < 10 || x > 11 ) System . out . println ( 0 ) ; else { if ( x == 1 || x == 11 ) System . out . println ( a1 ) ; if ( x == 2 ) System . out . println ( a2 ) ; if ( x == 3 ) System . out . println ( a3 ) ; if ( x == 4 ) System . out . println ( a4 ) ; if ( x == 5 ) System . out . println ( a5 ) ; if ( x == 6 ) System . out . println ( a6 ) ; if ( x == 7 ) System . out . println ( a7 ) ; if ( x == 8 ) System . out . println ( a8 ) ; if ( x == 9 ) System . out . println ( a9 ) ; if ( x == 10 ) System . out . println ( a10 ) ; } }
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(identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (if_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))) 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