#include<iostream>
#define _ while
#define __ <<
#define ___ >>
#define ____ (
#define _____ {
#define ______ }
#define _______ )
#define _________ +
#define ___________ int
#define ____________ main
#define _____________ cin
#define ______________ cout
#define _______________ return
#define ________________ endl
#define _________________ using namespace std
#define __________________  ;
_________________ __________________
___________ ____________ ____ _______ _____
___________ ________,__________ __________________
_ ____ _____________ ___ ________ ___ __________ _______
______________ __ ____ ________ _________ __________ _______ __ ________________ __________________
_______________ ________ - ________ __________________
______
//呵呵，不知道这样的风格到底怎么样，简单的问题复杂化，呵呵，闲的没事的时候想到的

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