我发现了A+B的迷惑写法

#include <bits/stdc++.h>
#define _ int
#define __ cin
#define ___ >>
#define ____ cout
#define _____ <<
#define ______ +
using namespace std;
int main(void) {
	_ _______, ________;
	__ ___ _______ ___ ________;
	____ _____ _______ ______ ________;
	return 0;
}