public static void main ( String [ ] args ) {
  Scanner scan = new Scanner ( System . in ) ;
  int n = scan . nextInt ( ) ;
  int T = scan . nextInt ( ) ;
  int A = scan . nextInt ( ) ;
  int [ ] H = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    H [ i ] = scan . nextInt ( ) ;
  }
  double [ ] t = new double [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    t [ i ] = T - 0.006 * H [ i ] ;
  }
  double rest = Math . abs ( t [ 0 ] - A ) ;
  int key = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( rest > Math . abs ( t [ i ] - A ) ) {
      rest = Math . abs ( t [ i ] - A ) ;
      key = i ;
    }
  }
  System . out . print ( key + 1 ) ;
}

public static void main ( String [ ] args ) { Scanner scan = new Scanner ( System . in ) ; int n = scan . nextInt ( ) ; int T = scan . nextInt ( ) ; int A = scan . nextInt ( ) ; int [ ] H = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { H [ i ] = scan . nextInt ( ) ; } double [ ] t = new double [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { t [ i ] = T - 0.006 * H [ i ] ; } double rest = Math . abs ( t [ 0 ] - A ) ; int key = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( rest > Math . abs ( t [ i ] - A ) ) { rest = Math . abs ( t [ i ] - A ) ; key = i ; } } System . out . print ( key + 1 ) ; }
(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: (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: (block (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: (array_type element: (floating_point_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (floating_point_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: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (identifier) right: (binary_expression left: (decimal_floating_point_literal) right: (array_access array: (identifier) index: (identifier)))))))) (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_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 (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)))))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)))))) (expression_statement (assignment_expression left: (identifier) right: (identifier))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))))))