static int modExp ( int a , int b ) {
  int result = 1 ;
  while ( b > 0 ) {
    if ( b == 1 ) result = result * a ;
    a = a * a ;
    b /= 2 ;
  }
  return result ;
}

static int modExp ( int a , int b ) { int result = 1 ; while ( b > 0 ) { if ( b == 1 ) result = result * a ; a = a * a ; b /= 2 ; } return result ; }
(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 (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: (identifier) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier)))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))))) (return_statement (identifier))))