#include <iostream>
#include <string>
 
using namespace std;
 
int main() 
{
    string s = "你好，我好。abc,123,aaa...中文英文！";
    string r = "";
    const char* c = s.c_str();
    for (int i = 0; i < s.length(); i++)
    {
    	if ((c[i] == -17 && c[i + 1] == -68) || 
    		(c[i] == -29 && c[i + 1] == -128) ||
    		(c[i] == -30 && c[i + 1] == -128))
    	{
    		i += 2;
    		continue;
    	}
    	if (c[i] > 256 || c[i] < 0)
    	{
    		r += c[i];
    	}
    }
	cout << r << endl;
}

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