static void printResult ( int arr [ ] , int n ) {
  int count = 0 ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) if ( gcd ( arr [ i ] , arr [ i - 1 ] ) != 1 ) count ++ ;
  System . out . println ( count ) ;
  System . out . print ( arr [ 0 ] + " " ) ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    if ( gcd ( arr [ i ] , arr [ i - 1 ] ) != 1 ) System . out . print ( 1 + " " ) ;
    System . out . print ( arr [ i ] + " " ) ;
  }
}

static void printResult ( int arr [ ] , int n ) { int count = 0 ; for ( int i = 1 ; i < n ; i ++ ) if ( gcd ( arr [ i ] , arr [ i - 1 ] ) != 1 ) count ++ ; System . out . println ( count ) ; System . out . print ( arr [ 0 ] + " ▁ " ) ; for ( int i = 1 ; i < n ; i ++ ) { if ( gcd ( arr [ i ] , arr [ i - 1 ] ) != 1 ) System . out . print ( 1 + " ▁ " ) ; System . out . print ( arr [ i ] + " ▁ " ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (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: (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)) (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (decimal_integer_literal))) consequence: (expression_statement (update_expression (identifier))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (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 (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)) (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) right: (decimal_integer_literal))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (decimal_integer_literal) right: (string_literal)))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (string_literal)))))))))