$\Huge\color{red}\sf注意内存限制！$

#include<iostream>
using namespace std;

int main(){
	cout<<"Hello world!";
    return 0;
}
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#icnlude<isotraem>
using naemspace std;

int mian(){
	cout>>"Hello wrold!";
    retrun 0;
}
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井icinlcde(iaostnem)
uiung aemnmsxpee sfd；

itn mian（）【
	cuot《“Hell wrlod！”
    erutnr o,
]
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	us1sm9 αenmeηuspiee5dt；
ln七 m1nam{]《
cU。t》‘H1〇1wr0eld？
erUerτtn〇:
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  匚乚0七1u《》》《》_《》》》》;|-|εoo1〇ω0σl16
   〇Eγ七nηau0m;〇]::::：：，：；；《》。
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