static int ___gcd ( int a , int b ) {
  if ( a == 0 || b == 0 ) return 0 ;
  if ( a == b ) return a ;
  if ( a > b ) return ___gcd ( a - b , b ) ;
  return ___gcd ( a , b - a ) ;
}

static int ___gcd ( int a , int b ) { if ( a == 0 || b == 0 ) return 0 ; if ( a == b ) return a ; if ( a > b ) return ___gcd ( a - b , b ) ; return ___gcd ( a , b - a ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (return_statement (decimal_integer_literal))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (return_statement (identifier))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (return_statement (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)) (identifier))))) (return_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (identifier)))))))