static long powerMod ( long x , long exponent , long m ) {
  long prod = 1 ;
  for ( int i = 63 ;
  i >= 0 ;
  -- i ) {
    prod = ( prod * prod ) % m ;
    if ( ( exponent & 1L << i ) != 0 ) {
      prod = ( prod * x ) % m ;
    }
  }
  return prod ;
}

static long powerMod ( long x , long exponent , long m ) { long prod = 1 ; for ( int i = 63 ; i >= 0 ; -- i ) { prod = ( prod * prod ) % m ; if ( ( exponent & 1L << i ) != 0 ) { prod = ( prod * x ) % m ; } } return prod ; }
(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)) (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: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (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: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (decimal_integer_literal) right: (identifier)))) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (identifier)))))))) (return_statement (identifier))))