static long exponentiation ( long base , long exp ) {
  if ( exp == 0 ) return 1 ;
  if ( exp == 1 ) return base % N ;
  long t = exponentiation ( base , exp / 2 ) ;
  t = ( t * t ) % N ;
  if ( exp % 2 == 0 ) return t ;
  else return ( ( base % N ) * t ) % N ;
}

static long exponentiation ( long base , long exp ) { if ( exp == 0 ) return 1 ; if ( exp == 1 ) return base % N ; long t = exponentiation ( base , exp / 2 ) ; t = ( t * t ) % N ; if ( exp % 2 == 0 ) return t ; else return ( ( base % N ) * t ) % N ; }
(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: (identifier) right: (decimal_integer_literal))) consequence: (return_statement (decimal_integer_literal))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (return_statement (binary_expression left: (identifier) right: (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (return_statement (identifier)) alternative: (return_statement (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (identifier))) right: (identifier))))))