static BigInteger B ( long n ) {
  return BigInteger . valueOf ( n ) ;
}

static BigInteger B ( long n ) { return BigInteger . valueOf ( n ) ; }
(method_declaration (modifiers) type: (type_identifier) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (return_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))