public static long mod_pow ( long x , long p , long m ) {
  long a = 1 ;
  while ( p > 0 ) {
    if ( p % 2 == 1 ) {
      a = a * x % m ;
    }
    x = x * x % m ;
    p /= 2 ;
  }
  return a ;
}

public static long mod_pow ( long x , long p , long m ) { long a = 1 ; while ( p > 0 ) { if ( p % 2 == 1 ) { a = a * x % m ; } x = x * x % m ; p /= 2 ; } return 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)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier)))))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier)))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))))) (return_statement (identifier))))